BWomack214
30.01.2020 •
Mathematics
Elle is 23 years old.
her mother is 58 years old.
in how many years will elle's mother be twice as old as elle?
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Ответ:
Then, (58 + x) = 2(23 + x)
58 + x = 46 + 2x
2x - x = 58 - 46
x = 12
In short, After 12 Years,Elle's mother be twice as old as Elle
Hope this helps!
Ответ:
For this picture below: Yes. The base and height can be determined for both triangles. Use the formula A = 1/2bh to find the area of each, then add them to get the area of the trapezoid. 10 + 15 = 25 in^2.