Answer:
The base is 19.5.
Step-by-step explanation:
The given question is, "The perimeter of a rectangle is 58 and its base exceeds its width by 10, how long is the base?"
Perimeter = 58
Base, l = 10+b
The perimeter of a rectangle is :
P = 2(l+b)
58 = 2(10+b+b)
29 = (10+2b)
29-10 = 2b
19 = 2b
b = 9.5
Base, l = 10 + 9.5
= 19.5
Hence, the base is 19.5.
Answer:
8.33%
Step-by-step explanation:
Formula for percent error:

Using this formula, we get:

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Answer:
it is B
Step-by-step explanation:
$40% 0f 20 is 8
40% × 20 = (40/100) × 20 = 8