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I am raising money for a charity over the next 30 days. Company A is donating $500 and $5 per day and Company B is donating $400 and $7 per day. How many days will it take for their donation amount to be the same?

Respuesta :

Answer: 50 days

Step-by-step explanation:

Hi, to answer this question we have to write equations.

The money raised by each company will be equal to the fixed amount donated plus the product of the donations per day and the number of days passed.

Company A = 500+ 5x

Company B = 400+ 7x

Where x is the number of days

If the amounts donated are the same:

A = B

So:

500+5x = 400+7x

500-400 =7x-5x

100=2x

100/2 =x

50 days =x

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