Answer:
C
Step-by-step explanation:
do that with pithagoras:
20² + 4,5² = x²
400 + 20,25 = x²
420,25 = x²
x =
x ~ 20,5
Letter C: 20,5 feet
Tony spent $11.52 for some pens that were on sale for $.72 each how many pens did Tony bye
1 answer:
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When solving these proportions we just remember when moving a number from one side to the other if it started in the numerator it ends up in the denominator and vice versa.
I'll do it in two steps here for teaching purposes; it's not too hard to go directly to the answer.