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telo118 [61]
3 years ago
15

Complete the solution of the equation. Find the value of y when x equals 15.

Mathematics
1 answer:
Mariulka [41]3 years ago
8 0

Answer:

y = -6   PLEASE GIVE BRAINLIEST

Step-by-step explanation:

-15 - 9y = 39

               39 + 15 = 54

-9y =54

y = 54 ÷ -9 = -6

y = -6

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the length of a rectangle is 2 centimeters greater than its width. write a function to represent the area of the rectangle.
Yuri [45]
Well in this cause you could use the area, For a rectangle it’s LxW.Which means that if the width was 4cm and the length is 6cm you would times 6cm by 4cm,and the answer is 24cm2 so if you needed an answer there ya go
7 0
3 years ago
Help me ):
slavikrds [6]
For the carpet:

Given:

Area = x^2 + x - 20 ft^2
Length = x+ 5 ft

As a carpet is rectangular, the area is defined as the product of the length and the width. To obtain an expression of the carpet's width, the area is to be divided by the length, which is shown below:

         __x_-_4___x + 5|x^2 + x - 20         x^2 + 5x         --------          -4x - 20          -4x - 20             --------                    0

Therefore, the expression of width = x - 4.

Applying the value of x = 20 to obtain the measurements of the carpet, we obtain the following:

Width = x - 4 = 20 - 4 = 16ft
Length = x+ 5 = 20 + 5 = 25ft.

Therefore, the carpet is 25ft x 16ft.

For the wall:

The same principles apply to the wall as it is also assumed to be rectangular.

Given:
Area = <span>x^2 + 17x + 30 ft^2
Width = x + 2

To obtain the expression for the wall's length, Area is to be divided by the Width, which is shown below:

         __x_+_15______x + 2|x^2 + 17x + 30         x^2 + 2x          --------                  15x + 30                  15x + 30                   ---------                             0

Therefore, the expression for the wall's length is x + 15.

Applying the value of x = 20 to obtain the wall's dimensions:

Length = x + 15 = 20 + 15 = 35ft.
Width = x + 2 = 20 + 2 = 22ft.

Therefore the wall has measurements of 35ft x 22ft.</span>
8 0
3 years ago
A distribution has the five-number summary shown below. What is the range
sergey [27]

Answer:71

Step-by-step explanation:

range is the difference between the highest number and the smallest number in a group of data

Highest number=85

Smallest number=14

Range=highest number-smallest number

Range=85-14

Range=71

4 0
3 years ago
Read 2 more answers
Pablo wants to pour 82.69 grams of salt into a container. So far, he has poured 38.4 grams. How much more salt should Pablo pour
Hunter-Best [27]

Answer:

so far he has poured 38.4 grams

Step-by-step explanation:

7 0
3 years ago
If f(x) = 2^x + 4 and g(x) = x^2 – 4 what is the value of f(5) +g(-3)
Anon25 [30]

f(5)=2^5+4

f(5)=32+4=36

g(-3)=(-3)^2-4

=9-4

=5

f(5)+g(-3)=36+5

=41

8 0
3 years ago
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