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Fudgin [204]
3 years ago
5

Cellular phone service that charges per-minute will charge $70 for 270 minutes. How much would 1260 minutes cost? Round your ans

wer to the nearest tenth.
Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0
$70 = 270 min
x = 1260 min
Where x is the charge of phone service per 1260 min.

Cross multiply:
1260 * 70 = 270 * x
88200 = 270x
88200/270 = x
x = 326.67

The total charge of cellular phone service for 1260 min is $326.67
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There are 12 in a dozen, so each egg would cost $1.56.

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Step-by-step explanation:

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3 years ago
A rectangle initially has dimensions 6 cm by 7 cm. All sides begin increasing in length at a rate of 1 cm/s. At what rate is the
Morgarella [4.7K]

Answer:

  49 cm²/s

Step-by-step explanation:

The problem statement tells you what to do.

Write an equation relating A, b, h:

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You could write a formula for the area as a function of time and differentiate that:

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3 years ago
What is T in -5t-2(5t+10)=100​
Alina [70]

Answer:

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divide by -15

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