Kaela wants to join a fitness club. Club A charges a $35 joining fee, plus $19 per month. Club B charges a $28 joining fee, plus $23 per month. Kaela wrote the expressions below to figure out how much each club would cost for x months.


Club A: 35+19x

Club B: 28+23x

Which expression can be used to determine how much more money Club A will cost than Club B after x months?



A....... 7−4x7 - 4 x


B...... 7+4x7 + 4 x


C..... 63+42x63 + 42 x


D.... −7+4x


Will give brainliest.

Kaela wants to join a fitness club Club A charges a 35 joining fee plus 19 per month Club B charges a 28 joining fee plus 23 per month Kaela wrote the expressio class=

Respuesta :

The expression can be used to determine how much more money Club A will cost than Club B after x months is 7 - 4x

A linear equation is in the form:

y = mx + b;

where y, x are variables,  m is the rate of change and b is the initial value of y.

Let y represent the total cost for x months.

Club A charges a $35 joining fee, plus $19 per month. hence:

y = 19x + 35

Club B charges a $28 joining fee, plus $23 per month. hence:

y = 23x + 28

Club A will cost than Club B:

19x + 35 - (23x + 28)

= 7 - 4x

The expression can be used to determine how much more money Club A will cost than Club B after x months is 7 - 4x

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