Answer:
He must score 83 in the last test.
Step-by-step explanation:
To get a mean of 80 Terry must score a total of 4*80 = 320 over the 4 tests.
So his score for the last test must be 320 - (71 + 80 + 86)
= 320 - 237
= 83.
Answer:
y= 3x
Step-by-step explanation:
This is honestly your basic times tables if we are being honest. We know that she read 3 paragraphs per minute. We also know that in 4 minutes, she read 12 paragraphs. 4 times 3 = 12. So the answer is y=3x.
Answer:
18
Step-by-step explanation:
A : B
1 : 4½
4 : X
1/4.5 = 4/X
X = 4×4.5 = 18
Each book costs $26.24 because 1443.20÷55=26.24
The only ordered pair that shows Y as four less than X is (10, 6).
