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3 years ago

Hi please help i’ll give brainliest

Mathematics

2 answers:

kupik [55]3 years ago

8 0

Distributive property
(7 * 4y) + (7*9) = 28y + 63

____ [38]3 years ago

8 0

The correct answer is 28y+63

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Regina, Phil and Joseph each wrote expressions to represent their hourly earnings for an after-school job where h represents the

Citrus2011 [14]

Answer:

h=-15, -15 hours is your answer. You can't work negative hours though which means that Regina and Phil will never be able to make the same amount.

Phil has a higher rate and starting value, this means that Regina will never make the same amount working the same hours.

Step-by-step explanation:

Regina: 6.5h

Phil: 3(2.5h+5)

When you plug in the number of hours, you get the weekly pay. In order to get the same weekly pay, set the equations equal to each other.

6.5h=3(2.5h+5), This is an equation to find the number of hours it will take for them to get equal pay. Now, simplify.

6.5h=7.5h+15

-h=15

h=-15, -15 hours is your answer. You can't work negative hours though which means that Regina and Phil will never be able to make the same amount.

Phil has a higher rate and starting value, this means that Regina will never make the same amount working the same hours.

7 0

3 years ago

Fred is 4 times as old as Nathan and is also 27 years older than Nathan

Musya8 [376]

Fred’s age is 36 and Nathan’s age is 9

3 0

3 years ago

A rectangular prism has a length of 212 meters, a width of 4 meters, and a height of 214 meters.

OleMash [197]

181472 m^3

v = whl

4x214x212 = 181472

5 0

3 years ago

Read 2 more answers

Using f(x) = 4x + 6 with the domain of {-1,0,2}, find the range

konstantin123 [22]

The range is the output of the function, and there are many ways to find it and write it. Let's find it first by plugging in all the domain values (domain means input) into the function:
$f(-1) = 4(-1)+6=-4+6=2$
$f(0) = 4(0)+6=0+6=6$
$f(2) = 4(2)+6 = 8+6=14$

We have all of our values. We can either write the range as:
{ $2, 6, 14$ }

or, subtract the smallest value from the largest one:
$14-2=12$

So, there are those ways to write it, there are more, but I think you should stick with the first way because that's how the problem was presented to you. If you have any questions, hmu!

3 0

4 years ago

The rectangle below has an area of x2 + 11x + 28 square meters and a length of 2 + 7 meters.

Troyanec [42]

<h3><u>Question:</u></h3>

The rectangle below has an Área of x^2 + 11x + 28 square meters and a length of x+7 meters. What expression represents the width of the rectangle?

<h3><u>Answer:</u></h3>

The expression representing width of rectangle is (x + 4) meters

<h3><u>Solution:</u></h3>

Given that rectangle has an area x^2 + 11x + 28 square meters and a length of x + 7 meters

To find: width of the rectangle

<em><u>The area of rectangle is given as:</u></em>

$\text {Area of rectangle }=\text { length } \times \text { width }$

Here area = x^2 + 11x + 28 square meters

length = x + 7 meters

<em><u>Substituting the values in given formula,</u></em>

$\begin{array}{l}{\text { width }=\frac{x^{2}+11 x+28}{x+7}} \\\\ {\text { width }=\frac{x^{2}+4 x+7 x+28}{x+7}} \\\\ {\text { width }=\frac{x(x+4)+7(x+4)}{x+7}} \\\\ {\text { width }=\frac{(x+4)(x+7)}{x+7}}\end{array}$

Cancelling (x + 7) on numerator and denominator,

$\text { width }=(x+4)$

Thus expression representing width of rectangle is (x + 4) meters

3 0

3 years ago