a store plans to mark down all backpacks 40% james wants-to purchase a backpack that is currently priced at-$55 how ,much will j
1 answer:
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The first thing we are going to do for this case is define variables.
We have then:
x: number of gallons of water
y: total weight
We then have an equation of the form:
Where,
Substituting values:
We choose an ordered pair:
Substituting values:
Rewriting:
Answer:
y = 8.34x + 30
We have then:
x: number of gallons of water
y: total weight
We then have an equation of the form:
Where,
Substituting values:
We choose an ordered pair:
Substituting values:
Rewriting:
Answer:
y = 8.34x + 30