I believe the answer is 800
Answer:
-1/2
Step-by-step explanation:
We need to get a common denominator of 10
-4/5 *2/2 = -8/10
-8/10 +3/10
-5/10
Divide the top and bottom by 5
-1/2
Answer: 20 tests
Step-by-step explanation: She does every test in 2 1/2 mins. So she can do 20 in 50 mins.
Answer:
The answer will be D!
Step-by-step explanation:
First, let's find the value of X:
2x + 4x + 3x = 81
9x = 81
x = 9
Then, multiply it by the biggest side which is 4:
9 x 4 = 36
Answer:
20% of 45= 9 so you would subtract 9 from 45 getting you 39
Step-by-step explanation:
45-9=39 he would have to pay $39
