Dora spent $45 and has $32 left. Which equation can be used to calculate how much money Dora had at the beginning?

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

7 0

32+45 can be used to figure out the starting amount

vladimir2022 [97]3 years ago

5 0

$45 + $32 I believe -?
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faust18 [17]

$\text{Find the perimeter of the track field}\\\\\text{We already have one of our outside value, 50. We can multiply}\\\text{this by 2}\\\\50\cdot2=100\\\\\text{Now we need to find the perimeter, better known as the circumference}\\\text{of the half circle}\\\\\text{Since there is two half circles, we can make one}\\\text{whole circle}\\\text{Use the equation:}\\\\C=\pi \cdot d\\\\\text{Plug in and solve:}\\\\C=\pi \cdot 30\\\\C=94.24778\\\\$