
Concept explainers
To write: and solve an equation and to find the heaviest and lightest quarters the machine will approve.

Answer to Problem 35PPS
The equation is
The heaviest and lightest quarters the machines are 5.65g and 5.69g.
Explanation of Solution
Given information:
The U.S mint produces quarters that weigh about 5.67 grams each. After the quarters are produces, a machine weighs them. If the quarters weigh 0.02 gram more or less than the desired weight, the quarter is rejected.
Calculation:
Let, the difference between the weight of the coin
If this difference is 0.02 or
Because the expression
To solve, there are two equations, one for when it equals
And one for when it equals 0.02
Chapter 1 Solutions
Algebra 2
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