Asked by ava

Ling is three times as heavy as her packed suitcase. Her suitcase is 20 pounds heavier than her knapsack. The weights of Ling, her suitcase, and her knapsack total 170 pounds. How much does each weigh?

Identify a variable, set up an equation, and solve. Thanks so much
Answered by Steve
If Ling, suitcase, and backpack weigh x,y,z, respectively, then we have

x = 3y
y = z+20
x+y+z = 170

so,

3y + y + y-20 = 170
5y = 190
y = 38

So,
Ling weighs 114
suitcase: 38
backpack: 18
Answered by nox
no
Answered by nox
your wrong
Answered by Kevin
How is he wrong?
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