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lilavasa [31]
2 years ago
9

Need help on math question brainlest

Mathematics
1 answer:
likoan [24]2 years ago
8 0

Answer:

65m+25=c

Step-by-step explanation:

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As a promotion, a clothing store draws the name of one of its customers each week. The prize is a coupon for the store. If the w
kompoz [17]

The given formula is f(x) = 20(1.2)^x

The formula is the starting amount multiplied by 1 + the percentage raised to the number of weeks.


A) the percent increase is 20% ( 1.2 in the formula is 1 +20% as a decimal)

B) the original amount is $20

C) for 2 weeks, replace x with 2 and solve:

20(1.2)^2

20(1.44) = $28.80

After 2 weeks the coupon is $28.80

D)  To solve for the number of weeks (x) set the equation equal to $100:

100 = 20(1.2)^x

Divide both sides by 20:

5 = 1.2^x

Take the natural logarithm of both sides:

ln(5) = ln(1.2^x)

Use the logarithm rule to remove the exponent:

ln(5) = x ln(1.2)

Divide both sides by ln(1.2)

x = ln(5) / ln(1.2)

Divide:

X = 8.83

At 8.83 weeks the coupon would be $100, so after 9 weeks the coupon would be greater than $100

The answer is 9 weeks.

4 0
3 years ago
Can someone help me with this math homework please!
azamat

It is not necessary that the function decreasing over a given interval always be negative.

A function f(x) (value) decreases as x increases.

This does not mean that value of f(x) is negative.

It can have positive number as range.

7 0
2 years ago
Read 2 more answers
Make sure to use complete sentences in your answer 1.6084*10^3
Nikolay [14]
1.6084 * 10^3 simplifies to 1608.4
6 0
3 years ago
Write the decimal 0.1 repeating as a fraction in simplest form.
andreyandreev [35.5K]
0.1 repeating as a fraction is 1/9
5 0
2 years ago
Plz help I need this by tonight
miv72 [106K]

Answer:

it will take him 12 days to exercise for 576 minutes

Step-by-step explanation:

48x12=576

5 0
3 years ago
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