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# math

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Andrea has \$18 to spend. She spent \$6.50, including tax, to buy a notebook. She needs to save \$5.75, but she wants to buy a snack. If candy bars cost \$1.15 per package including tax, what inequality would show the maximum number of packages that Andrea can buy? Solve your inequality by showing your work and steps.

Feb 2, 2018

#1
+7563
+2

Let the number of candy bar packages be  n .

\$18  -  \$6.50  -  \$1.15n   ≥   \$5.75

Now we can drop the dollar signs from every number and simplify.

18  -  6.5  -  1.15n   ≥   5.75

11.5  -  1.15n   ≥   5.75

Subtract  11.5  from both sides of the inequality.

-1.15n  ≥  -5.75

Divide both sides by  -1.15  and flip the inequality sign.

n   ≤  5

The number candy bar packages must be less than or equal to  5 . The maximum number is  5  .

Feb 2, 2018

#1
+7563
+2

Let the number of candy bar packages be  n .

\$18  -  \$6.50  -  \$1.15n   ≥   \$5.75

Now we can drop the dollar signs from every number and simplify.

18  -  6.5  -  1.15n   ≥   5.75

11.5  -  1.15n   ≥   5.75

Subtract  11.5  from both sides of the inequality.

-1.15n  ≥  -5.75

Divide both sides by  -1.15  and flip the inequality sign.

n   ≤  5

The number candy bar packages must be less than or equal to  5 . The maximum number is  5  .

hectictar Feb 2, 2018