All categories

3 years ago

9-(1-3y)=4+y-(3-y), find y

Mathematics

1 answer:

astra-53 [7]3 years ago

6 0

Answer:

-7 is the answer!! :) hope this helps

You might be interested in

Five times a number, decreased by 58, is -23. Find the number.

mr Goodwill [35]

Let's say the number is represented by x.

Five times the number is 5x.

5x - 58 = -23 (Add 58 to both sides)

5x = 35 (divide both sides by 5)

x = 7

The number is 7.

8 0

4 years ago

Wally wants to determine the height of a statue that casts a 164-inch shadow by comparing it to his own height and shadow length

nataly862011 [7]

We have been given that Wally wants to determine the height of a statue that casts a 164-inch shadow by comparing it to his own height and shadow length. Wally is 68 inches tall, casts a shadow that is 41 inches in length.

We will use proportions to solve for the height of the statue because proportions state that ratio between two proportional quantities is same.

$\frac{\text{Height of statue}}{\text{Shadow of statue}}=\frac{\text{Height of Wally}}{\text{Shadow of Wally}}$

Upon substituting our given values in above equation, we will get:

$\frac{\text{Height of statue}}{\text{164 cm}}=\frac{\text{68 inch}}{\text{41 inch}}$

$\frac{\text{Height of statue}}{\text{164 cm}}\times \text{164 cm}=\frac{\text{68 inch}}{\text{41 inch}}\times \text{164 cm}$

$\text{Height of statue}=\frac{\text{68 inch}}{1}\times 4$

$\text{Height of statue}=272\text{ inches}$

Therefore, the height of the statue is 272 inches.

5 0

3 years ago

Simplify the expression -2x2(4x − 3).

Pepsi [2]

First you have to multiply -2 and 2 which is -4x.

Then your going to distribute -4 to 4x which is -16x.

Now your going to distribute -4 and -3 which is 12.

So your simplified expression would be -16x + 12

8 0

3 years ago

Read 2 more answers

The football fields at three different schools were measured, and it was found that their perimeters were 320 m, 360 m, and 400

Tomtit [17]

Let us say that,

<span>A = perimeter of football field of the 1st school</span>

B = perimeter of football field of the 2nd school

C = perimeter of football field of the 3rd school

So that:

A = 320 m

B = 360 m

C = 400 m

So the first thing we have to do to find for the minimum laps to make is to divide every perimeter by the smallest one, therefore divide all by 320 m, hence:

A’ = 1

B’ = 1.125

C’ = 1.25

Now multiply everything by a number such that all laps will be a whole number, in this case multiply everything by 8:

A’ = 8

B’ = 9

C’ = 10

Hence the laps to run are:

7 0

4 years ago

Graph the following inequality 6x+y>-6

Rudiy27

1738

u know how im rocking....

5 0

4 years ago