Answer:
A: 18
B: 30
C: You can make your own estimate, mine was 85 pounds and exact weight is 87.5 pounds
D: y = 0.4x + 10
Explanation:
This can be solved by creating an equation, and plugging in the values to see if they work.
Let x represent the weight in pounds of a package.
Let y represent the total cost of a new customer's shipment.
y (total cost) = 0.4x (extra cost to ship the package) + 10 (setting up an account)
Now we can test the various weights of the packages given to us in the problems:
A)
y = 0.4(20) + 10
y = 8 + 10
y = 18
It will cost $18 to ship a package that weight 20 pounds as a new customer.
B)
y = 0.4(50) + 10
y = 20 + 10
y = 30
It will cost $30 to ship a package that weighs 50 pounds as a new customer.
C)
I would estimate it to be about 85 pounds, I will find the exact amount down below:
45 = 0.4x + 10
We'll have to solve for x here:
Subtract 10 from both sides.
35 = 0.4x
Divide by 0.4 on both sides to isolate x.
87.5 = x
If you were charged $45 dollars to ship a package as a new customer, it would be 87.5 pounds heavy.
D)
We created an equation at the start to make solving these problems easier, our equation is y = 0.4x + 10.
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