Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $20.00 per month plus an additional $0.06 per minute. Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute. How many minutes can Trevor talk and both cell plans cost the same amount?

100

1000

500

50

Question

Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $20.00 per month plus an additional $0.06 per minute. Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute. How many minutes can Trevor talk and both cell plans cost the same amount?

100

1000

500

50

anonymous · Answer

Use the Substitution Method to solve the following system of equations.
2x + y = 3
-3x + 4y = 1

(1, 1)

(-1, -1)

(1, -1)

(-1, 1)


i really need help on these 2 questions i really don't get how to do them if you could please help me!! that would be great!! thnx!!

--Let the no of minutes be x

20 + 0.06x = 30 + 0.05x

0.01x = 10

x = 10 / 0.01 = 1000 minutes ANSWER

CHECK

20 + 0.06*1000 = 80 $
30 + 0.05*1000 = 80$

2) 2x + y = 3

y = 3 -2x

substitute in equation 2
-3x + 4 ( 3 - 2x) = 1

-3x +12 -8x = 1

11x = 11

x = 1

y = 1 ANSWER is A)

anonymous · Answer

its a.