Answer:
499
Step-by-step explanation:
Answer:
Length = 15m
Width = 5m
Step-by-step explanation:
w = 1/3l
p = 2l + 2/3l
40 = 2 2/3 l
l = 15
w = 1/3(15)
w = 5
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-Chetan K
Let 
be the amount of the 30% alloy and 
the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of
kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that
Now,
It's either 30 percent or 70. but i believe the 70 percent walks to school and 30 percent DO NOT walk to school
