2(x+-9)
2(x-9)
Distribute
2x-18 is the simplified expression
Answer:
9+9 isnt 7
3+4 is 7
and 4+4 is 8
Step-by-step explanation:
The answer is: "39 points" .
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Explanation:
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" x/ 50 = 78/100 " ; in which "x" equals the number of points needed.
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To solve for "x" ;
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Look at the denominators: 50 * (what value?) = 100.
→ "100 ÷ 50 = 2" .
→ So; "50 * 2 = 100" ;
So, let us look at the numerators:
x * 2 = 78 ;
↔ 2x = 72 ;
Divide each side of the equation by "2" ; to isolate "x" on one side of the equation ; and to solve for "x" ;
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→ 78 ÷ 2 = 39 ;
The answer is: "39 points" .
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Shape 3 because if you look at the shaded figure it is a square like shape i hope it helps!!!
