Ask question

Ask question

All categories

3 years ago

15

I don't know how to work this problem out

1 answer:

madam [21]3 years ago

4 0

1/5(x-y) = 1
x+y = 9

x-y = 5 (x5)
x+y = 9

First you want to create both equations so at least one of the variables (x or y) are the same in both equations, so that is why I multiplied the top one by 5, you multiply the whole equation (both sides)

2x = 14
x = 7

Then you either Plus or minus one from the other, I plused the top one onto the bottom one, then solved for x

7 + y = 9
y = 2

Then put x back into one of the first two equations to get Y

You might be interested in

During a 3 day street fair, 159 woman and 177 men attended. At that rate, how many more men than women will attend a 7 day stree

Stella [2.4K]

awnser: 42

step by step:

1. find the racio of both

2.multiply the awnsers by 7

3.finally subtract

3 0

2 years ago

Read 2 more answers

A box is 50 cm long. how long is the box in feet

algol13

Answer:

____1.64042 foot____

8 0

2 years ago

How much tomato juice is needed for a group of four people if each person gets 1/3 cup of juice how much tomato juice is needed

Ivanshal [37]

Answer:

$1\frac{1}{4} \ cups \ of \ juice$ , $2\frac{2}{3}\ cups \ of \ juice$

Step-by-step explanation:

Given:

Number of people in a group = 4

Each person gets cup of juice = $\frac{1}{3}$

Question asked:

How much tomato juice is needed for a group of four people ?

How much tomato juice is needed if they each get 2/3 cup of juice ?

Solution:

<u>Unitary method:</u>

In case of each person gets $\frac{1}{3}$ up of juice.

1 person gets cup of juice = $\frac{1}{3}$

4 persons gets cup of juice = $\frac{1}{3} \times4=\frac{4}{3} =1\frac{1}{3} \ cup \ of\ juice$

Therefore, $1\frac{1}{4} \ cups \ of \ juice$ is needed for a group of four people.

In case of each person gets $\frac{2}{3}$ cup of juice.

1 person gets cup of juice = $\frac{2}{3}$

4 persons gets cup of juice = $\frac{2}{3}\times4=\frac{8}{3} =2\frac{2}{3} \ cups\ of \ juice$

Thus, $2\frac{2}{3}$ cups of tomato juice is needed if they each get $\frac{2}{3}$ cup of juice.

7 0

3 years ago

The picture below shows a right-triangle-shaped charging stand for a gaming system:

zepelin [54]

Answer:

7cot 55

that is the answer

Step-by-step explanation:

that

6 0

2 years ago

Read 2 more answers

Given: Line b is parallel to line c. Line c is parallel to line e. Line d is perpendicular to line b. Which of the following sta

mamaluj [8]

Need more information for me to answer
<span />

4 0

3 years ago

Read 2 more answers