$ratio \:of \:surface \:areas\\=\frac{2[5\times 7 + 7\times 3+3\times 5]}{2[20\times 28+ 28\times 12+12\times 20] }\\\\=\frac{[35 + 21+15]}{[560+ 336+240] }\\\\=\frac{71}{1136}\\\\=\frac{1}{16}\\\\= 1\: :\: 16$

3 0

3 years ago

I NEED HELP ASAP! Mabye.

melamori03 [73]

Answer:

b and e

Step-by-step explanation:

6 0

3 years ago

2 Emma buys 33 yards of blue fabric and some yellow fabric at a store. She buys a total of 53 yards of fabric. The equation 1 2

Rus_ich [418]

Step-by-step explanation:

your answer is 99

6 0

3 years ago

Find hcf and LCM of 40 ,60 and 80

andre [41]

hear here is your answer in attachment attach

4 0

3 years ago

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