Answer:
10
Step-by-step explanation:
let the number be n then half the number is n, then
n + n = 15
Multiply through by 2 to clear the fraction
2n + n = 30, that is
3n = 30 ( divide both sides by 3 )
n = 10
Thus the number is 10
A parallelogram has a base of 10 centimeters and a height of 4 centimeters. What is the area of the parallelogram?
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