9/10 minis what equals 1/5?

7/10

Step-by-step explanation:

Set up an equation to solve the problem

1/5 = 9/10 - x

Lets make them all have a common denominator

1/5 = 2/10

Subtract the 9/10

 2/10 =  9/10 - x

- 9/10   - 9/10

-7/10 = -x

Since -x equals -7/10, that means positive x equals 7/10

The answer then comes out to:

x = 7/10

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: