the square below has sides that are 3 1/2 inches long. what is the perimeter of the square? write an addition equation to solve.
1 answer:
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Answer:
a) 17
b) 45
Step-by-step explanation:
a)
use pemdas first,
= 4
3x4 = 12
1x4 = 4
now the equation is
9+12 = 21
that makes the equation 21-4
21-4 = 17
a) 17
now for b
b)
the equation would then be
so youd use pemdas as always
start in the parenthases
= 4
4-1 = 3
the equation is now
now, multiply 3x3x4
3x3 = 9
9x4 = 36
now the equation is 9+36
9+36 is 45
b) 45
hope this helped!