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2 answers:
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<em>Volume= a³</em>
<em>a=edge</em>
<em>2197 = a³</em>
<em>=> a=13 m</em>
<em>Surface area=6a²=6*13²=6*169=1014 m²</em>
<em>
= 25,35 ≈ 26</em>
<em>=> <u>26 cans needed</u></em>
<em>a=edge</em>
<em>2197 = a³</em>
<em>=> a=13 m</em>
<em>Surface area=6a²=6*13²=6*169=1014 m²</em>
<em>
<em>=> <u>26 cans needed</u></em>
Answer:
Step-by-step explanation:
Given
New mail carrier takes 4 hours for delivery i.e.
New mail carrier completes part of work in 1 hour
Old mail carrier takes 3 hours for delivery i.e.
mail carrier completes part of work in 1 hour
If they work together, they complete the work in x hours i.e.