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(12+15)x2 = 27x2 = 54 feet
If the given dimensions are in feet then 12 times 15 = 180 square feet
There are 180 square feet in an area that is 12 feet by 15 feet.
12 pennies/5 quarters or 7 dimes/15 nickels (turn them all in pennies) 12/125 >? 70/75 12/125 >? 70÷5/75÷5 12/125 >? 14/15 (clearly it seems that 14/15 is greater than 12/125, however cross multiply) 12x15 >? 14x125 180 < 1,750 So that 7 dimes/15 nickels is greater than 12 pennies/5 quarters.
With these two numbers you can either divide or multiply! If you multiply you would do 12x15=180! Or you can divide instead! All, you have to do is divide 12 into 180 and you would get 15! Both of these solutions are so easy if you just work them out! i hope this answer helped you understand!