2 years ago

Please Help me asap!!

Mathematics

2 answers:

timofeeve [1]2 years ago

7 0

Answer:

z -2 = 10

Step-by-step explanation:

11z-9-10z+7 = 10

Combine like terms on the left side

11z -10z -9+7 =10

z -2 = 10

Mademuasel [1]2 years ago

3 0

Answer: z=12

Step-by-step explanation:

$11z-9-10z+7=10\\z-9+7=10\\z-2=10\\z=12$

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For his long distance phone service, Scott pays a $6 monthly fee plus 8 cents per minute. Last month, Scott's long distance bill

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$\text{We need to find how many minutes Scott had in his phone service}\\\\\text{We know that he pays \$6 a month, 0.08 cents per minute, and was}\\\text{billed \$17.92 in total}\\\text{Turn this into an equation:}\\\\17.92 =0.08x+6\\\\\text{Solve for x:}\\\\17.92 =0.08x+6\\\\\text{Subtract 6 from both sides}\\\\11.92=0.08x\\\\\text{Divide by 0.08}\\\\x = 149\\\\\boxed{\text{Scott was billed for 149 minutes}}$