Mathematics, 28.03.2020 16:59 fyegirl12
A basic cellular phone plan costs $ 18 per month for 50 calling minutes. Additional time costs $ 0.90 per minute. The formula Upper C equals 18 plus 0.90 left parenthesis x minus 50 right parenthesis gives the monthly cost for this plan, C, for x calling minutes, where x greater than 50. How many calling minutes are possible for a monthly cost of at least $ 63 and at most $ 72 question mark
Answers: 1
Mathematics, 22.06.2019 01:40
Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.
Answers: 2
A basic cellular phone plan costs $ 18 per month for 50 calling minutes. Additional time costs $ 0.9...
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