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ale4655 [162]
3 years ago
5

After selling a dozen copies of the daily newspaper a newsstand had fewer than 75 copies left how many copies did the newsstand

have at the beginning of the day
Mathematics
2 answers:
Aneli [31]3 years ago
8 0
The daily newspaper stand had began with 87 copies.
Furkat [3]3 years ago
3 0
The stand began with 87 copies
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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
A partial proof was constructed given that MNOP is a parallelogram.
Yanka [14]
A diagram of parallelogram MNOP is attached below

We have side MN || side OP and side MP || NO

Using the rule of angles in parallel lines, ∠M and ∠P are supplementary as well as ∠M and ∠N.

Since ∠M+∠P = 180° and ∠M+∠N=180°, we can conclude that ∠P and ∠N are of equal size. 

∠N and ∠O are supplementary by the rules of angles in parallel lines
∠O and ∠P are supplementary by the rules of angles in parallel lines

∠N+∠O=180° and ∠O+∠P=180°

∠N and ∠P are of equal size

we deduce further that ∠M and ∠O are of equal size

Hence, the correct statement to complete the proof is

<span>∠M ≅ ∠O; ∠N ≅ ∠P

</span>

4 0
3 years ago
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a number has a 4 in the thousands place the number also has a digit whose value is 10 times the value of the 4 on the thousands
maks197457 [2]
Well I can still answer that question without the following and it will be 44,000
3 0
3 years ago
What is the radius<br> and diameter
kotegsom [21]
Diameter- Is two times the radius. Circumference is the distance around the edge of the circle.

Radius- A line from the center of a circle to a point on the circle.

Hope this helped.
7 0
3 years ago
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3, I cannot fail this if I do I have a F in math!! Please make sure u know it’s correct I can’t do it alone. Please show me wher
V125BC [204]

Answer: y=-3  x=6

Step-by-step explanation:

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3 years ago
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