Answer:
Step-by-step explanation:
double time is pay mulitplied by 2.
7.61 x2=15.22
You have:
2r
6r-21
then move the 6r over to the left and you end up wtih
-4r
-21
Then you divide by -4 and when you do you must flip the inequality so your answer would be
r
21/4
Answer: it will take 25 months
Step-by-step explanation:
Let x represent the number of months that it will take for the cost of both plans to be the same.
Cell phone Plan A costs $70 per month and comes with a free $500 phone. This means that the total cost of x months with plan A would be
70 × x = $70x
Cell phone plan B costs 50 per month but does not come with a phone. If you buy the 500 phone and choose plan B, then the total cost of x months with plan B would be
500 + 50 × x = 500 + 50x
To determine the number of months until your cost is the same as Plan A's, we would equate both costs. It becomes
70x = 500 + 50x
70x - 50x = 500
20x = 500
x = 500/20 =25
Answer:
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