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xxTIMURxx [149]
2 years ago
5

A customer's monthly trash collection bill was $24.74. Due to a rate increase, her monthly bill is now $26.86. To the nearest te

nth of a percent, by what percent did the amount of the customer's bill increase​
Mathematics
1 answer:
Galina-37 [17]2 years ago
7 0

Answer:

8.57%

Step-by-step explanation:

Find increase:

26.86 - 24.74 = 2.12.

Find percentage:

\frac{2.12}{24.74} = 0.08569118835 = 8.57%

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Demand for electrical services in your area is $12 million per year. It is expected to grow 10% compounded annually
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A lab technician shows up to the lab at 9am on Monday and finds a culture of bacteria x containing 5328 bacteria. Each culture s
zubka84 [21]

Answer:

9 pm on a Sunday, 55 .5 days before

Step-by-step explanation:

if there were 6 bacteria initially and from the growth rate we noticed that it doubled every 3 hours

because by 9 am Monday morning there were 5328 bacteria and then by 12 noon (3 hours later), there were 10, 656 bacteria

what we need to know is how long did it take 6 bacteria to become 5328

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then

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taking the ratio

\frac{5328}{24} =\frac{x}{6}\\ \\222=\frac{x}{6} \\\\\\222(6) = x\\\\1332=x

we need to now convert this into hours

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Step-by-step explanation:

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