well, 1/7th of the cupcakes is 3. so 2/7ths makes 6. and 21 minus 6 is 15. So, your answer is 15.
225/5 = 360/x
225x = 1,800
225x/225 = 1,800/225 = 8
It would take him 8 minutes
Answer:
It depends on the problem
Step-by-step explanation:
Often, you want one or another of the lengths in the right triangle. The Pythagorean theorem gives a relation between the squares of those lengths, so you take the square root as a last step. The last step may be to simplify that square root.
