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Nonamiya [84]
3 years ago
15

The price of an item has been reduced by 20%. The origanal price was $90. What is the price of the item now?

Mathematics
2 answers:
Gala2k [10]3 years ago
7 0

Answer: $72

Step-by-step explanation:

90x.2=18

90-18=72

Hope this helped :)you turn your percent into a decimal and multiply it buy your original price and you get how much money you're saving which is 18 dollars then you subtract it by your original price

Rudiy273 years ago
4 0

Answer:

72

Step-by-step explanation:

when asked to decrease a number by a certain percentage, take the original number as 100%

here 90 is equivalent to 100%.

We subtract 20% from 100% to get 80% ( that's the new value)

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Carolyn bought 9 feet of copper pipe for 54$ what was the cost of each foot of copper pipe?
Irina18 [472]

Answer:

54÷9= 6

so its $6 a foot of copper

8 0
2 years ago
Read 2 more answers
Convert 7.7km into miles if 1.6 km = 1 mile
Lemur [1.5K]
This is a simple equation.  

The equation is y = 1.6x  with y being the miles and x being the kilometers.

Lets plug the kilometers in.

Y=1.6(7.7)

1.6 *  7.7 = 12.32

12.32 miles is  equal to 7.7 kilometers

HOWEVER

There are about .6 miles in a kilometer, so if you typed this wrong I don't know.  

It is still the same concept.

Y = .6x

Y = .6(7.7)

.6 * 7.7 =  4.8

In this case there are 4.8 miles in 7.7 kilometers


3 0
2 years ago
Please answer question 4
olasank [31]
#4)
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2(8x+10) = 4 * 5x
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3 0
3 years ago
If a b and m∠2 = 71°, what is m∠1?
Nikolay [14]

Answer:

  71°

Step-by-step explanation:

In order to be able to solve this problem, we must assume the relation between lines "a" and "b" is that they are parallel.

If a║b, then ∠1 and ∠2 are corresponding, hence congruent.

  m∠1 = m∠2 = 71°

8 0
3 years ago
Is <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B6%7D%20" id="TexFormula1" title=" \frac{3}{6} " alt=" \frac{3}{6} "
STALIN [3.7K]

Hey!

-----------------------------------------

Answer: Yes 3/6 is rational!

-----------------------------------------

Why? Well, because 3 and 6 are integers that don't repeat. 3/6 simplifies to 1/2 or 0.5 which doesn't repeat so it's rational.

-----------------------------------------

Hope This Helped! Good Luck!

8 0
3 years ago
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