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3 years ago

7

A shirt with the cost price $80 was discounted by 10% what is the amount of the discount and what is the discounted price of the

shirt

2 answers:

Sophie [7]3 years ago

7 0

Answer:

72.00

Step-by-step explanation:

umm cant really explain

Iteru [2.4K]3 years ago

3 0

The answer is $72 because if you turn 10% into a decimal it is .10 and .10 times 80 is 8 and 8 minus 80 is 72

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How many liters each of a 25% acid solution and a 50% acid solution must be used to produce 80 liters of a 40% acid solution?

alina1380 [7]

Answer:

32 and 48 liters

Step-by-step explanation:

Let 25% solution is x liters, then 50% solution is (80 - x) liters.

<u>Acid content is going to be same:</u>

0.25x + 0.5(80 - x) = 80*0.4
0.25x - 0.5x + 40 = 32
0.25x = 8
x = 8/0.25
x = 32 liters

So 32 liters of 25% solution and 80 - 32 = 48 liters of 50% solution

4 0

3 years ago

Solve the system of equations. *<br> 4x - 2y = 16<br> y = -5x + 13

LekaFEV [45]

Answer:

is below

Step-by-step explanation:

x= -5/7

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3 years ago

In this circle, the area of sector COD is 50.24 square units. The radius of the circle is units , and units.

maks197457 [2]

Let angle be alpha

$\\ \rm\Rrightarrow Area=50.24$

$\\ \rm\Rrightarrow \dfrac{\alpha}{360}\pi r^2=50.24$

$\\ \rm\Rrightarrow \alpha 3.14r^2=18086.4$

$\\ \rm\Rrightarrow \alpha r^2=5760$

$\\ \rm\Rrightarrow r^2=\dfrac{5760}{\alpha}$

$\\ \rm\Rrightarrow r=\sqrt{\dfrac{5760}{\alpha}}$

If you have angle measure in degree put in place of Alpha and get the value elaw this is our final answer

7 0

2 years ago

An item is regularly priced at $90 . leila bought it at a discount of 60% off the regular price. how much did leila pay?

forsale [732]

90(.4) = 36

Leila payed $36

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3 years ago