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McGraw Hill Integrated II, 2012 View details

6. Solving x^2+bx+c=0

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Exercise 51 Page 51

Write an inequality that represents the situation.

204

Practice makes perfect

Olivia needs more than $ 254 to go on a trip. To earn this amount, she sells candy bars that each cost $ 1.25. We want to find the minimum number of candy bars she needs to sell. Let x be the number of candy bars Olivia sells. Then, we can write the following. 1.25 * x > 254 Let's solve for x.

1.25 * x > 254

DivIneq

.LHS /1.25.>.RHS /1.25.

x > 203.2

RoundInt

Round to nearest integer

x>203

Therefore, Olivia must sell at least 204 candy bars.