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2 years ago

15

Write a proportion that can be used to find the part if you know the base and the percent. Then, solve the proportion.

1 answer:

SOVA2 [1]2 years ago

4 0

This scenario is mostly found during a store sale where they offer discounts.

Assuming: Original price = 90 ; discount rate = 25%

Discount value = Original price * discount rate
Discount value = 90 x 25% = 22.50

Since 25% is the discount, you only need to pay 75% of the original price.

Discounted Price = original price * (100-25)% = 90 x 75% = 67.50

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Enter the number that makes the equation true.<br> 3.15+0.6=?

emmasim [6.3K]

The answer is

3.15 + 0.6 = 3.75

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2 years ago

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This is worth 15 points please help. What is the equation in y=mx+b. Read the directions correctly, please.

ololo11 [35]

Answer:

y= 0.75x+2.50

Step-by-step explanation:

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Evaluate log3^8, given log3^2 is equivalent to 0.631

elixir [45]

We will use the followin property of logarithms:

$log(a^b) = b log(a)$

So, we have

$log(3^2) = 2 log(3) = 0.631$

If you multiply both sides by 4, you get

$8log(3) = log(3^8) = 2.524$

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2 years ago

Howdoyouwrite<br> 36/50<br> as a percentage?

DENIUS [597]

Answer:

72%

Step-by-step explanation:

Divide 36 by 50 to get .72, and then convert it to a percentage

8 0

2 years ago

If sin(x) = cos(y) for acute angles x and y, how are the angles related?

Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

$Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5$

#We can reverse as:

$Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603$

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0

2 years ago