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Nitella [24]
3 years ago
6

A publishing house is selling subscriptions to its magazines for 20% off the original price. If a subscription to Newsweek Magaz

ine is on sale for $72, how much does it usually cost?
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
4 0

Answer:

90

Step-by-step explanation:

The magazines are sold at a discount. Discount reduces the price of the good

If the magazines are sold at 20%, the magazine's price would be 80% (100% - 20%) of the original price

let a represent price of the magazine before the discount

This equation represents price of the magazine after the discount

0.8 x a = $72

Divide both sides by 0.8 and find a

a = $90

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How do you break apart the factor 42 using place value?
worty [1.4K]

Hey there!☺

Let's break apart 42.

The 4 is in the tens. The 2 is in the ones.

                            Place Value starting from Thousands

                             Thousands  Hundreds  Tens  Ones

                             _________ ________ ____ _____

                                                                        4          2

So this is how we break up numbers using place value.

Hope this helps!

6 0
3 years ago
What’s the answer to this question ?
Dmitry [639]
Answer = 121°

Parallelograms’ angles are all equal. So the two given are equal.

6x + 13 = 7x - 5
x = 18

Plug x back into one of the original angles

6(18) + 13 = 121

Now we know all the angles are 121°, so that’s the answer
7 0
3 years ago
Read 2 more answers
The population of a town with a 20162016 population of 87 comma 00087,000 grows at a rate of 1.91.9​% per year. a. Find the rate
SCORPION-xisa [38]

Answer:

Given,

The initial population, P = 87,000,

Annual rate of increasing, r = 1.9 %,

a) Thus, the population after t years,

A=P(1+\frac{r}{100})^t

A=87000(1+\frac{1.9}{100})^{t}

=87000(1+0.019)^t

=87000(1.019)^t

87000(1.019)^t=87000e^{kt}

Where, k is the rate constant,

By comparing,

\implies k=log(1.019)=0.00817418400643\approx 0.00817

Hence, the approximate value of k is 0.00817.

And, the exponential growth function would be,

A=87000e^{0.00817t}

b) If A = 145,000,

145000=87000(1.019)^t

By using graphing calculator,

We get,

t=27.14\approx 27

The year after 27 years from 2016 is 2043.

Hence, in 2043 the population reach 145,000​.

6 0
4 years ago
Kerry asked a bank teller to cash a $390 check using $20 bills and $50 bills. If the teller gave her a total of 15 bills, how ma
malfutka [58]
12 twenty dollar bills and 3 fifty dollar bills
4 0
3 years ago
PLEASE HELP ILL GIVE THANKS, 5.0, AND BRAINLIEST TO WHOEVER ANSWERS CORRECTLY PLEASE HELP AND ILL GIVE A HIGH POINT COUNT
Allushta [10]

Answer:

<h3>FOR THIS PROBLEM I GOT..... (20/r)-(20/s)</h3>

Step-by-step explanation:

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6 0
2 years ago
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