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zubka84 [21]
3 years ago
14

Macy's if offering a sale where you can use two different coupons, Coupon A gives 15%

Mathematics
1 answer:
Juliette [100K]3 years ago
8 0

The ticket price of the item after applying coupon B first and then coupon A is $65.45

Coupons reduce the ticket price of an item.

<u><em>Ticket price</em></u><u><em> after </em></u><u><em>coupon B i</em></u><u><em>s applied </em></u>

An item costs $80. After applying the coupon B which gives, $3 off the price, the cost of the item reduces to $77 ($80 - $3).

The ticket price of the item after coupon B is applied is $77

<em><u>Ticket price </u></em><em><u>after c</u></em><em><u>oupon A </u></em><em><u>is applied </u></em>

The item costs $77 when coupon B is applied. If the discount is 15% off on coupon A, it means that the item costs 85%( 100 - 15%) of its initial price.

Ticket Price of the item = percentage price x price of the item after the first coupon B was applied

85% x $77

0.85 x $77 = $65.45

A similar question was solved here: brainly.com/question/17413216?referrer=searchResults

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2 years ago
Investments increase exponentially by
Blizzard [7]

Using an exponential function, it is found that you would have $10,240 after 18 years.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial value.
  • r is the growth rate, as a decimal.

Considering the initial value of $2,500, and the growth rate of 60% every 6 years, the equation is given by:

A(t) = 2500(1.6)^\frac{t}{6}

Hence, after 18 years, the amount is given by:

A(18) = 2500(1.6)^\frac{18}{6} = 10240

More can be learned about exponential functions at brainly.com/question/25537936

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5 0
2 years ago
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3 years ago
Which rates are equal? Choose 2. A. $28 per 8 salads B. $42 per 12 steaks C. $45 per 18 rolls of paper towels D. $57 per 20 boxe
Assoli18 [71]
A = 3.5
b = 3.5
c = 2.5
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e = 2.6
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An element with mass 510 grams decays by 26.3% per minute. How much of the element is remaining after 7 minutes, to the nearest
Eddi Din [679]

A decay rate of 26.3% per minute means that for every minute that passes, there remains 73.7% of the amount of the substance available at the end of the previous minute.

If a_0 is the starting amount, and a_i is the amount left after i minutes, then

a_1=0.737a_0

a_2=0.737a_1=0.737^2a_0

a_3=0.737a_2=0.737^3a_0

and so on, such that

a_7=0.737^7a_0

We have a_0=510 grams at the start, so after 7 minutes we're left with

a_7=0.737^7(510)\approx60.2\,\rm g

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3 years ago
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