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2 years ago

5

Three friends have dinner at a restaurant. The total bill for the dinner is $41. The friend want to leave at 50% tip and they wa

nt to divide the tip evenly among themselves which is the best estimate of each friends share of two

1 answer:

Vika [28.1K]2 years ago

5 0

$20.50 Would be he best an

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Suppose that during one. Of extreme cold, the average daily temperature decrease by 1 1/2°F each day. How many days did it take

Masteriza [31]

It will take 6 days for it to reach 9F hope this helps

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3 years ago

Which is the simplified form of (9c^-9)^-3<br> b 1/729 c^27

rosijanka [135]

<u>ANSWER</u>

$(9 {c}^{ - 9} )^{ - 3}=\frac{{c}^{ 27} }{729}$

<u>EXPLANATION</u>

The given expression is

$(9 {c}^{ - 9} )^{ - 3}$

Recall that:

$({a}^{m} )^{n} = {a}^{mn}$

We use the law of exponents to get

$(9 {c}^{ - 9} )^{ - 3} = 9^{ - 3} {c}^{ - 9 \times - 3}$

Let us multiply in the exponents to get:

$(9 {c}^{ - 9} )^{ - 3} = 9^{ - 3} {c}^{ 27}$

Recall again that:

${a}^{ - m} = \frac{1}{ {a}^{m} }$

This implies that:

$(9 {c}^{ - 9} )^{ - 3} = \frac{1}{ {9}^{ 3} } \times {c}^{ 27}$

We expand the power to get:

$(9 {c}^{ - 9} )^{ - 3} = \frac{1}{9 \times 9 \times 9} \times {c}^{ 27}$

$(9 {c}^{ - 9} )^{ - 3}=\frac{1}{729} \times {c}^{ 27}$

We multiply out to get:

$(9 {c}^{ - 9} )^{ - 3}=\frac{{c}^{ 27} }{729}$

7 0

3 years ago

lukranit [14]

C is the answer to your question

4 0

3 years ago

Read 2 more answers

Box Plot for Problem #12

Rus_ich [418]

I don’t see an image for this.

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2 years ago

A dish has 212 bacteria in it. The population of the bacteria will grow ata rate of 80% every 2 days. How many bacteria will be

mr_godi [17]

If they are growing 80% for every twodays, it would be 40% for every one day.

Bacteria after 9 days = 212 * 9 * 40 / 100
= 763.2
To round up, the population of bacteria after 9 days would be 763, with a growth rate of 80% for every two days.

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2 years ago