Question

If 5 sandwich rolls cost $0.55, how much will 12 rolls cost?

Answer 1

$1.32

Answer 2

how'd u get that?

Answer 3

1.32. Why cant you use a calculator for this question or do mental math?

Answer 4

\[5\implies0.55\]\[12\implies x\]
\[x=\frac{0.55\cdot12}{5}.\]

Answer 5

Set it up as a proportion. 5/12 = .55/x read as 5 is to 12 as .55 is to x

Answer 6

Then you need to solve for x.

Answer 7

just do division

Answer 8

Whether you do it by division or by setting it up as a proportion, the steps are the same.

Answer 9

kay thannks guys i got it

Answer 10

:-)