Two rival dry cleaners both advertise their prices. Store A's prices are modeled by the expression , where x is the number of items brought in. Store B's prices are modeled by the expression , where x is the number of items brought in. When do the two stores charge the same rate?

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Two rival dry cleaners both advertise their prices. Store A's prices are modelled by the expression (15x -2), where x is the number of items brought in. Store B's prices are modelled by the expression 3(5x+7) , where x is the number of items brought in. When do the two stores charge the same rate?

The two stores cannot charge at the same rate.

Step-by-step explanation:

From the information given above:

Two rival dry cleaners both advertise their prices.

Store A's prices are modelled by the expression (15x -2)

Store B's prices are modelled by the expression 3(5x+7)

The objective is to determine the period at which the two stores charges at the same rate;

To do that, we need to equate the expression in store A and B

i.e.

15x - 2 = 3(5x + 7)

Open brackets

15x - 2 = 15x + 21

Deduce both sides by - 15x

- 2 = 21

Therefore; since the value of x cannot be estimated, then the two stores cannot charge at the same rate.

50- 250 is correct i did that one too

step-by-step explanation: