3 years ago

X + y = 8 2x2 – y = –5

Mathematics

1 answer:

kherson [118]3 years ago

5 0

Answer:

x=-2,y=10

Step-by-step explanation:

y=8-x.............equation 1

4-y=-5..........equation 2

Now,

putting the value of y in equation 2,

4-(8-x)=-5

4-8+x=-5

-3+x=-5

x=-5+3

x=-2

Then,

putting the value of x in equation 1

y=8+2

y=10

You might be interested in

Advantages and disadvantages of simple interest

omeli [17]

Answer:

Simple interest, specifically in bank offers a grace period of six days, which gives time to payback. When saving money or investing, if the interest rate is high then the customer benefits. The disadvantages in simple interest are that if the interest rate is high then the borrower will pay more.

7 0

2 years ago

Read 2 more answers

What is the measure, in degrees, of ∠x in the figure?

gizmo_the_mogwai [7]

Answer:

I believe the answer is 127 degrees.

Step-by-step explanation:

Please give brainliest.

8 0

3 years ago

Read 2 more answers

at the zoom,the ratio of monkeys to gorrillas is 5:2 if there were 20 monkeys how many gorrilas would there be?

Umnica [9.8K]

8 gorrilas

Explanation:

The ratio of monkeys to gorrila = 5:2

This means there are 5 monkeys for every 2 gorrilas

when there are 20 monkeys,

let the number of gorrilas = x

5 monkeys = 2 gorrilas

20 monkeys = x

cross multiply:

5(x) = 20(2)

5x = 40

divide both sides by 5:

5x/5 = 40/5

x = 8

Hence, if there were 20 monkeys, we would have 8 gorrilas.

5 0

1 year ago

Solve for x. 5 = − 3 9 x

IgorLugansk [536]

Answer:

x = -5/27

Step-by-step explanation:

5 = − 3 · 9x; x = -5/27

6 0

3 years ago

What number can be divided into 2 and 3 equal groups without a remainder?

Studentka2010 [4]

Answer:

a. 36

Step-by-step explanation:

36 is a square root

meaning that 6 and 6 can both go into 36 when multiplied

it can also be divided into 9 and 4

6 0

2 years ago

Read 2 more answers