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Jenny wants to switch her family to a new cell phone plan. She is considering a plan offered by WirelessTalk. $\newline$ • WirelessTalk charges a monthly access fee of $\$45$ for the family plan. $\newline$ • For every $2$ phones on the plan, WirelessTalk charges an additional $\$30$ per month. $\newline$ Jenny finds that her family would pay $\$135$ per month on the plan. How many phones do they have? $\newline$ $\_\_\_$ phones

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Solve proportions: word problems

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Q. Jenny wants to switch her family to a new cell phone plan. She is considering a plan offered by WirelessTalk.

\newline

• WirelessTalk charges a monthly access fee of

\$45

for the family plan.

\newline

• For every

2

phones on the plan, WirelessTalk charges an additional

\$30

per month.

\newline

Jenny finds that her family would pay

\$135

per month on the plan. How many phones do they have?

\newline

\_\_\_

phones

Divide Remaining Amount: Now, we need to divide the remaining amount by the additional charge for every $2$ phones to find out how many sets of $2$ phones there are. $\$90 / \$30 = 3$ sets of $2$ phones
Calculate Total Number of Phones: Since each set represents $2$ phones, we multiply the number of sets by $2$ to find the total number of phones. $\newline$ $3$ sets $\times 2$ phones/set $= 6$ phones

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