Cindy worked for 15 consecutive days, earning an average wage of $91 per day. during the first 7 days her average was $87/day, and her average wage during the last 7 days was $93/day. what was her wage on the 8th day?
a. $83 c. $97
b. $92 d. $105

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

you bought 31 v bucks

step-by-step explanation:

25+6=31