1) given
2) combine the -2-9 and get -11
3) add x to each side
4) add 11 to each side
5) divide 3 on each side
6) you get x=12 as the answer
Evaluate 8 a − 1 + 0.5 b 8a−1+0.5b8, a, minus, 1, plus, 0, point, 5, b when a = 1 4 a= 4 1 a, equals, start fraction, 1, divid
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Answer:
6
Step-by-step explanation:
We want to evaluate:
8a-1+0.5b
When a=1/4 and b=10.
We simply substitute the given values of as and b into the given expression,
The value of the expression is 6 for the give values of a and b.
Answer:
The mystery number is 7
Step-by-step explanation:
This is a very easy problem.
let the mystery number=x
2(x+5)=24
2x+10=24
2x=24-10
2x=14
x=7
To check the answer,
Add 5 to 7=12, multiply by 2=24
He got a 76% on his last test, which was less than before. This means his average grade will decrease.
Answer:
42952
Step-by-step explanation:
826 x 52
