Answer:
He should cross multiply 90 and 60, and then divide by 100. The answer is 54.
Answer:

Step-by-step explanation:
If p and q are two statements, then you can use the following table to find the value of 

If
p: 7 is an even number - is false, because 7 is not an even number (F)
q: 3 is the square root of 9 - true, because 3 is the square root of 9 (T),
then according to the above table,
is true.
Correct option

Answer:
x = 37
Step-by-step explanation:
Vertically opposite angles are equal
Therefore, 2x + 6 = 80
Subtract 6 from both sides: 2x = 74
Divide both sides by 2: x = 37
Answer:
16,000 lb.
Step-by-step explanation:
For every ton, it equals 2,000 pounds. So to find how many pounds is in 8 tons, just multiply 2,000 by 8. This would give you 16,000 pounds!
This is of course using the U.S. tons, so if you want to convert it for metric tons it would be 17,632 since 1 metric ton = 2204.
I hope this was able to help!
Answer:
a = -2
b = 7
Step-by-step explanation:
5a+3b=11
-2a+3=b
substitute for b:
5a + 3(-2a + 3) = 11
5a -6a + 9 = 11
-a = 2
a = -2
b = 7