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wariber [46]
4 years ago
11

James bought Nicole a pair of shoes for 54.o.o and a bracelet for 21.99 he used a 15% off coupon and then pages 7.5% sales tax w

hat was the total amount spent
Mathematics
1 answer:
Gennadij [26K]4 years ago
7 0
Take the two prices (54.00 and 21.99) and add them together
this equals 75.99
then multiply this by .15 (15%)
this equals 64.5915
then take this and multiply it by .075 (7.5%)
this equals 4.8443625
then add 64.5915 (price after coupon) with 4.8443625 (the sales tax on the price after the coupon)
this equals 69.4358625

So in total, he paid $69.44 (rounded) 

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4 years ago
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4 0
3 years ago
Read 2 more answers
-5(x - 1) greater than -40
sergey [27]

Answer:

x < 9  

Step-by-step explanation:

Writing this entirely with symbols, we get:

-5(x - 1) > -40

We must solve for x.  

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Dividing both sides by -5 isolates x:

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Note that when working with an inequality such as this one, dividing both sides by a negative number requires changing the direction of the inequality symbol.

3 0
3 years ago
The value of a car is expected to decrease exponentially. Which formula can you use to predict the value of the car for a given
IgorLugansk [536]
Hey there!

When the value of something goes down over time- a house, a car, anything- it's called depreciation. 

It would be expressed as exponential decay. This is because the value is going down exponentially as stated in the problem. Additionally, when it decays, the growth factor is less than one, so the value steadily decreases.

Let's rule out our other options:

B) Half-Life. This doesn't work because it's usually used for radioactive decay, which is usually a steady decrease of radioactivity and material that divides by two, hence the word half. For example:

Day 0) Started with 10 grams of plutonium
Day 1) 5 grams
Day 2) 2.5 grams

And so on.

C) Compound Interest. Like simple interest, but compunds usually at a certain point - yearly, monthly, every ten years, and so on. But, this is used for interest, mostly in a bank account or if you have a loan. It doesn't exhibit depreciation, and therefore it's not used to predict car value.

D) Exponential Growth- Exponential growth does not work for one main reason - it grows. That would mean that the value of the car goes up- and unless it's an old and very expensive car, that wouldn't be the case.

Hope this helps!
5 0
3 years ago
(Label each one)
shutvik [7]

1,3) no solution

2,4,5,6,7) solution

5 0
4 years ago
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