Well, one quarter of 20 is 5 (because 20 ÷ 4 = 5). so, to find 3 quarters, we multiply 5 times 3.
5 × 3 = 15, so 3 quarters of 20 is 15.
Answer:
See the solution
Step-by-step explanation:
Surface area = 2(19 x 15) + 2(15 x 13) + 2(13 x 19)
Surface area = 570 + 390 + 494
Surface area = 1454 cm²
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Answer: Surface area = 1454 cm²
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Answer:
36x+42 if you need it simplified
x=-7/6 if you set the equation equal to zero
