Math

QuestionSolve for xx: When is the cost of the trampoline park, 150+20x150 + 20x, equal to the skating rink, 175+15x175 + 15x?

Studdy Solution

STEP 1

Assumptions1. The inequality is 4b+36b4b +3 \leq6b . The cost of each binder is represented by bb
3. The cost of a pack of markers is $34. The cost of four binders and a pack of markers is less than or equal to the cost of six binders

STEP 2

We need to solve the inequality to find the relationship between the cost of four binders and a pack of markers and the cost of six binders.4b+6b4b + \leq6b

STEP 3

Subtract bb from both sides of the inequality to isolate the variable bb on one side.
bb+36bbb -b +3 \leq6b -b

STEP 4

implify the inequality.
32b3 \leq2b

STEP 5

Divide both sides of the inequality by 22 to solve for bb.
32b\frac{3}{2} \leq bThis means that the cost of each binder must be at least 1.5.Therefore,thecorrectanswerisD.Fourbindersanda1.5. Therefore, the correct answer is D. Four binders and a 3 pack of markers cost no more than six binders.

STEP 6

Assumptions for the second problem1. The trampoline park charges a booking fee of 150and150 and 20 for each person who attends the party.
2. The skating rink charges a booking fee of 175and175 and 15 for each person who attends the party.
3. We need to find the number of people, xx, for which the cost of the party at both places will be the same.

STEP 7

Set up an equation to represent the cost of the party at both places.150+20x=175+15x150 +20x =175 +15x

STEP 8

Subtract 150150 and 15x15x from both sides of the equation to isolate the variable xx on one side.
20x15x=17515020x -15x =175 -150

STEP 9

implify the equation.
5x=255x =25

STEP 10

Divide both sides of the equation by 55 to solve for xx.
x=255x = \frac{25}{5}

STEP 11

Calculate the value of xx.
x=5x =5Therefore, if5 people attend the party, the cost of having the party at the trampoline park and the skating rink will be the same.

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