maymaaz
16.09.2020 •
Mathematics
What is 1.8×10 + 8.4×10
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Ответ:
Basically, you are multiplying 1.8 and 8.4 by itself ten times but here is a tip:
When multiplying by ten, move the decimal once to the right
So
That leaves
102
Ответ:
Step-by-step explanation:
if 9 boxes is 42.75 then 1 box is 4.75 dollars
so 13 boxes would be 13X3.75 which is 61.75$
if 9b=$42.75
1b=x
9bx=$42.75b
x=$42.75b÷9b
x=$4.75