Answered

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To hire a bicycle it costs $6 for each day plus a fixed charge of $15

a) Maria pays $39 to hire a bicycle. How many days does she hire it for.

Sagot :

johnny837

Answer:

4 days

Step-by-step explanation:

1) Derive a formula.

Let b = bicycle

Let x = the number of days

A set up equation: b = 6x + 15

2) If she pays 39 to hire a bicycle, substitute 39 into b, then solve for x.

39 = 6x + 15

39 - 15 = 6x

24 = 6x

24/6 = x

4 = x

x = 4

Since x is the number of days, she hired the bicycle for 4 days.

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