Mandy Says '4.2 Can Be Written As 3 Ones, 13 Tenths And 5 Hundreds Is Mandy Correct Explain Your Answer (2024)

Answer:

QR = 8

Step-by-step explanation:

find y with an equation

5y+y+3+4y+2=55

10y=55-3-2

10y=50

y=50:10

y=5

find QR

QR = y+3

5+3=8

The answer to the equations are:

1. x = -1.969

2. m = 0.748

3. v = -8.8

4. x = -3

5. u = 4

6. a = -3/70

7. p = -5

8. t = 9

How to calculate the variables?

Based on the information given, it should be noted that an equation simply means a formula that can be used to express the equality of two expressions.

1x - 1 - 4.2x = 5.3

Collect the like terms

1x - 4.2x = 5.3 + 1

-3.2x = 6.3

x = -1.969

7/8m - 4/7 - 5/6m = - 3/4

Collect the like terms

0.875m - 0.5714 - 0.833 = -0.75

0.875m = -0.75 + 0.5714 + 0.833

0.875m = 0.6544

m = 0.6544/0.875

m = 0.748

4.3v + 10.75 - 4v = 8.11

Collect the like terms

4.3v - 4v = 8.11 - 10.75

0.3v = -2.64

v = -2.64/0.3

v = -8.8

9/7 + 9/7x - 6/7x = 0

Collect the like terms

9/7x - 6/7x = 0 - 9/7

3/7x = -9/7

x = -9/7 × 7/3

x = -3

6.9u - 2 - 3.2u - 10 = 2.8

Collect the like terms

6.9u - 3.2u = 2.8 + 12

3.7u = 14.8

u = 14.8/3.7

u = 4

8/5 = - 4a + 7/5 - 2/3a

Collect the like terms

4a + 2/3a = 7/5 - 8/5

4 2/3a = -1/5

14/3a = -1/5

a = -1/5 × 3/14

a = -3/70

8p + 6 - 4p = -14

Collect like terms

8p - 4p = -14 - 6

4p = -20

p = -20/4

p = -5

7 - (5t - 13) = -25

Collect like terms

-5t = -25 - 7 - 13

-5t = -45

t = -45/-5

t = 9

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The equation that represents this situation is p = 4 + 5d

What are algebraic expressions?

Algebraic expressions are known as mathematical expressions made up of:

VariablesConstants AdditionSubtractionMultiplicationSome other algebraic operations

From the information given, we have that:

p is the number of pennies in the jard is the number of dimes in the jarThe number of pennies in a jar of coins is 4 more than 5 times the number of dimes in the jar

The equation this represents is:

p = 4 + 5d

Thus, the equation that represents this situation is p = 4 + 5d

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The area of the tile must be between the whole numbers 64 square yards and 81 square yards.

Area of a square

Side length of the square tile = 8 and 9 yards

Assume side length = 8 yards

Area of the square tile = length ²

= 8²

= 8 × 8

= 64 square yards

Assume side length = 9 yards

Area of the square tile = length ²

= 9²

= 9 × 9

= 81 square yards

Therefore, the area of the tile must be between the whole numbers 64 square yards and 81 square yards.

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Answer: [tex]x=5\sqrt{\frac{22}{7\pi}}[/tex]

Step-by-step explanation:

[tex]2\pi (x^2 +2x^2)=471 \frac{3}{7}\\\\3x^2 =\frac{1650}{7\pi}\\\\x^2 =\frac{1650}{21\pi}\\\\x=\sqrt{\frac{1650}{21\pi}}\\\\x=5\sqrt{\frac{22}{7\pi}}[/tex]

Answer:

look below

Step-by-step explanation:

1. A a point

ABE is triangle

GAB is an angle

AG is a lime as it extends in both directions

AB is a ray because it extends in 1 direction

GE is a line segment

an intersection is the 5th def

4th defition is coplanar

3rd is colinear

2nd should be line segment

1st is line

2.top point has to be g because the triangles is described as ABE. This also means that A has to be the top marker

B has to be the triangular point to the right, because otherwise GAB would be a straight line not an angle.

therefore E is the bottom left point.

There are 220 ways to choose a president, vice-president, and secretary from a club with 12 members

How to determine the number of ways to choose the president, vice-president, and the secretary?

The given parameters are:

Number of members, n = 12

Number of positions, r = 3

Here, the order of the choices is not to be taken into consideration.

This means combination.

So, we have:

nCr = n!/r!(n -r)!

This gives

12C3 = 12!/(3! * 9!)

Expand

12C3 = 12 *11* 10 * 9!/(3! * 9!)

Divide by 9!

12C3 = 12 *11* 10/(3!

Expand 3!

12C3 = 12 *11* 10/(3 * 2 * 1)

Evaluate the quotient

12C3 = 220

Hence, there are 220 ways to choose a president, vice-president, and secretary from a club with 12 members

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Micah's best long jump will be 3 meters as per the given data.

What is multiplication?

Multiplication is the general procedure in mathematics in which we multiply two or more numbers to each other to find a new multiplied number.

Multiplication gives us a resultant number that will be very big as compared to the number which is going to be multiplied if and only if the number which is going to be multiplied is more than one.

Lets Avi's best jump = A

Micah's best jump = M

Now,

Avi's best long jump is 1 1/6 times as long as Micah's.

So,

A = 1 1/6 M = 7/6 M

And,

Avi's best long jump is 3 1/2 meters.

A = 3 1/2 = 7/2

By substituting,

7/2 = 7/6 M ⇒ M = 3 meter.

Hence "Micah's best long jump will be 3 meters as per the given data".

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A number is made up of other numbers, called factors.

What is a numerical data?

A numerical data is also referred to as a quantitative data and it can be defined as a data set that is primarily expressed in numbers only. This ultimately implies that, a numerical data refers to a data set consisting of numbers rather than words.

What are factors?

Factors can be defined as the fundamental building blocks of a number. This ultimately implies that, factors refers to numbers which can be multiplied together to get another number.

In this context, we can infer and logically deduce that a number is made up of other numbers, called factors.

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Step-by-step explanation:

To make your answer concrete, suppose there will be 30 guests and the genie will tell you either x-bar= 5 cans or M=3 cans. Which of these two measures would best help you determine how many can you should have on hand?

The speed of the object is 12121 m per week.

What does it mean to do speed?

“Speed” is a street name for various stimulant drugs that teens, young adults and others use to feel more alert and focused, and in some cases, to feel high. Some people also use various forms of speed to reduce their appetite. Types of speed include: Amphetamines (used to treat ADHD, narcolepsy, and depression)

The object is moving at a speed of 2 centimeters every 7 seconds.

We need to find the speed in m per week.

2 cm = 0.02 m

1 week = 604800 s

7 s = [tex]1.65 * 10^{-6} week[/tex]

Speed = distance/time

So,

[tex]v = \frac{0.02 m}{1.65 * 10^{-6 } week}[/tex]

[tex]v = 12121.21 m/ week[/tex]

or v = 12121 m/ week

So, the speed of the object is 12121 m per week.

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Answer:

Step-by-step explanation:

in the picture

People in the U.S. Will spend 33.2 billion dollars on statins in 2015.

What is an expression?

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Statins are used to keep cholesterol in check and are a top-selling drug in the U.S. The equation: S-1.6x = 6.3 gives the number of sales (S) of statin in billions of dollars a year after 1998.

Number of years = 2015 - 1998

Number of years = 17

x = 17 years

S-1.6x = 6.3

S - 1.6 ( 17 ) = 6.3

S = 6.3 + 27.2

S = 33.5

Therefore, People in the U.S. Will spend 33.2 billion dollars on statins in 2015.

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Answer:

700,000, 100+80+2, 9,000

Answer:

5

Step-by-step explanation:

C(4, 7)

D(7, 11)

x₁ = 4; y₁ = 7

x₂ = 7; y₂ = 11

d = √[(x₂ - x₁)² + (y₂ - y₁)²]

d = √[(7 - 4)² + (11 - 7)²]

d = √(3² + 4²)

d = √(9 + 16)

d = √25

d = 5

[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]

Let's use distance formula :

[tex]\qquad \sf \dashrightarrow \: \sqrt{(x2 - x1) {}^{2} + (y2 - y1)} [/tex]

[tex]\qquad \sf \dashrightarrow \: \sqrt{(7 - 4) {}^{2} + (11 - 7) {}^{2} } [/tex]

[tex]\qquad \sf \dashrightarrow \: \sqrt{ {3}^{2} + 4 {}^{2} } [/tex]

[tex]\qquad \sf \dashrightarrow \: \sqrt{9 + 16} [/tex]

[tex]\qquad \sf \dashrightarrow \: \sqrt{25} [/tex]

[tex]\qquad \sf \dashrightarrow \: 5[/tex]

So, the distance between them is 5 units ~

There was an error in C.

What Is the Present Perfect Tense?

To show a connection between the present and the past, we utilise the present perfect tense. In other words, the action took place in the past but at an unspecified time. In reality, we are generally more interested in the outcome than the activity itself. The past participle and have/has combine to generate this tense. As a result, you'll observe that this verb tense's formation is simple. The initial component, have or has, depends on how the subject-verb is conjugated. In the same vein, the second component is the very's past participle. Typically, it is created by ending the verb's root with -ed or -d.

Instances include talking, leaning, wiping, mixing, and more.

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Answer:

PEMDAS is the order of operations in all math subjects

Step-by-step explanation:

P- Parentheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction.

The statement that is true regarding the graphed functions is that f(-2) = g(-2), making the 4th statement the right choice.

We are asked to mark the statement that is true regarding the graphed functions.

In the question, we are shown a coordinate plane with two functions graphed on it.

The function shown in the blue color is named f(x), and the function in the red color is named g(x).

The function f(x) implies that function f is defined over the variable x.

The function g(x) implies that the function g is defined over the variable x.

The point of intersection of the two functions f(x) and g(x) is (-2, 4).

This means that for the x-value -2, the value of the f(x) = g(x) = 4.

Thus, we can say that f(-2) = g(-2).

Thus, the statement that is true regarding the graphed functions is that f(-2) = g(-2), making the 4th statement the right choice.

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Answer:

4x x 22< x

Step-by-step explanation:

No explanation. Straight answer

Answer:

x = 3

Step-by-step explanation:

Solving algebraic expression:

To solve for x, bring all the x terms to LHS and all the constant terms to RHS.

x + 0.5 + 3x -2 = 3x + 1.5

x + 3x - 3x = 1.5 - 0.5 + 2

x = 3

The value of x in the expression x + 0.5 + 3x - 2 = 3x + 1.5 is 3 .

Given, that expression X + 0.5 + 3x - 2 = 3x + 1.5 .

To solve for x combine all terms having variable x and constant terms.

Expression: x + 0.5 + 3x - 2 = 3x + 1.5 .

Take 3x from RHS to LHS .

Sign of 3x will be changed from positive to negative .

[tex]x + 0.5 + 3x - 2 -3x = 1.5[/tex]

Add all the x terms having same sign.

[tex]4x - 3x +0.5 -2 = 1.5\\[/tex]

Take constant terms to RHS.

[tex]x = 1.5 + 2 - 0.5[/tex]

[tex]x = 3[/tex]

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[tex]\huge\text{Hey there!}[/tex]

[tex]\textsf{If }\mathsf{10\times4 = \boxed{\star\ \bf {40\ }\star}}\textsf{, then that means you will have \bf 4 }\boxed{tens}\textsf{ \& \bf 0 \boxed{ones}\ }\large\checkmark[/tex]

[tex]\mathsf{10 \rightarrow 1\ ten}[/tex]

[tex]\mathsf{4\rightarrow 4 \ ones}[/tex]

[tex]\mathsf{40\rightarrow 4\ tens\ \& \ 0 \ ones\ or\ simply\ 4\ tens\ }\large\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

40

Step-by-step explanation:

Complete the given statement:

10x4 ones=____ ones =_____

Consider ones

Since 'ones' represents the place value of the units digit. So, the value of the place value 'ones' is 1.

= 10 times( 4 ones)

= 10 times 4

= 40 ones

= 40

So, ones = 40 ones = 40.

[tex]P=2l+2w \\ \\ P-2w=2l \\ \\ l=\frac{P-2w}{2}[/tex]

Answer:

[tex]\sf I = \dfrac{p -2w}{2}[/tex]

Step-by-step explanation:

Solving an equation:

p = 2l + 2w

First isolate the term with 'I'. So, subtract 2w from both sides.

p - 2w = 2I

Now, isolate 'I' by dividing both sides by 2

[tex]\sf \dfrac{p - 2w}{2}= I[/tex]

Answer:

x > 2/3 or x < -10/3

Step-by-step explanation:

|3x + 4| > 6

To solve an absolute value inequality of the form |X| > b, where X is an expression, and b is a number, change the inequality into this compound inequality:

X > b or X < -b

Here, X is 3x + 4.

b is 6.

We get the compound inequality:

3x + 4 > 6 or 3x + 4 < -6

3x > 2 or 3x + 4 < -6

x > 2/3 or 3x < -10

x > 2/3 or x < -10/3

Answer:

[tex]\left(- \infty, -\dfrac{10}{3}\right) \cup \left(\dfrac{2}{3}, \infty\right)[/tex]

Step-by-step explanation:

To solve an inequality containing an absolute value:

Isolate the absolute value on one side of the equation.Apply the relevant absolute rule.Solve both cases.

Given inequality:

[tex]|3x+4| > 6[/tex]

Apply the absolute rule:

[tex]\textsf{If }\:|u| > a,\:a > 0\:\textsf{ then }\:u < -a \:\textsf{ or }\: u > a[/tex]

Therefore:

[tex]\begin{aligned}\text{\underline{Case 1}} && \text{\underline{Case 2}}\\3x+4 & < -6 \quad & 3x+4 & > 6\\3x & < -10 \quad & 3x & > 2\\x & < -\dfrac{10}{3} \quad & x & > \dfrac{2}{3}\end{aligned}[/tex]

So the solution to the inequality in interval notation is:

[tex]\left(- \infty, -\dfrac{10}{3}\right) \cup \left(\dfrac{2}{3}, \infty\right)[/tex]

Applying the segment addition postulate, the length of segment BC is calculated as: 30 units.

What is the Segment Addition Postulate?

Based on the segment addition postulate, when three points A, B and C are collinear (lie on a straight line), where B is at the center of points A and C, thus: AB + BC = AC.

Given the following measurements:

Segment AC = 48,

Segment AB = 2x + 2,

Segment BC = 3x + 6

Plug in the values into AB + BC = AC:

(2x + 2) + (3x + 6) = 48

Solve for x

2x + 2 + 3x + 6 = 48

2x + 3x + 2 + 6 = 48

5x + 8 = 48

Subtract 8 from both sides

5x + 8 - 8 = 48 - 8

5x = 40

Divide both sides by 5

5x/5 = 40/5

x = 8

Find BC by plugging in the value of x

BC = 3(8) + 6

BC = 24 + 6

BC = 30 units.

Therefore, applying the segment addition postulate, the length of segment BC is calculated as: 30 units.

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The population of the city in 15 years is 517,500.

What is future value?

The worth of a current asset at the a future date depending on to an estimated rate of growth is known as future value (FV).

Some key features of the future value are-

Using the FV calculation, investors can properly assume the profit of an investment.Because market volatility and uncertainties about future investing conditions, determining the FV of an investment can be difficult.There are two methods for calculating an asset's FV: simple interest and compound interest.Future value and present value are diametrically opposed; the former estimates what something would be worth at a future date, while the latter calculates what anything at a future date is worth today.

Now, the same concept is used to determine the future value of the population;

The formula for future value;

FV = P (1 + r)^n

FV = Future valueP = Present value ( =250,000)R = interest rate ( = 5%)N = number of years ( = 15)

Substituting the values in the formula;

FV = 250,000 (1 + 0.05)^15

FV = 517,500

Therefore, the population of this city in 15 years is 517,500.

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We can note that the salary per game of $154,320.9 is lower than the maximum taxable income in 2018.

What is division?

Finding the maximum number of equal pieces that can be made by splitting an integer into equal parts is called division. The symbol "÷" represents it. It is one of the four fundamental operations in math.

Note: The data originates from 2022 and thus the data could be inaccurate in the coming years.

Given

Income=$25,000,000

Number of games= 162

Maximum taxable income= $147,400

The salary per game is the income divided by the number of games

Salary per game= Income/ Number of games

= $25,000,000/ 162

=$154,320.99

We can note that the salary per game of $154,320.9 is lower than the maximum taxable income in 2022.

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Answer:

Step-by-step explanation:

it 7

step by step:

y= .20x +13

.20(15)+13

3+13

16 meters

The stamps Sally give to Daisy is 192.

According to the statement

we have given that the Sally had 960 more stamps than daisy at first. Sally gave 20 percent of her stamps to Daisy. Daisy then gave 1/3 of her stamps to Sally. Sally had 880 more stamps than Daisy in the end.

And we have to find that the How many stamps did Sally give to Daisy.

So, For this purpose, we know that the

A percentage is a number or ratio that can be expressed as a fraction of 100.

So, Sally had 960 stamps

she give 20% of stamps

it means

she give stamps to daisy = 20/100*960

she give stamps to daisy = 192.

So, The stamps Sally give to Daisy is 192.

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