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sesenic [268]
2 years ago
7

so, im t trying to find the original price and sale price of a book for example and the amount of discount is 2.80 dollars and t

he percent paid was 60 percent and percent saved was 40 %, plz help I just need the explanation of how to do it cause I got more of these problems
Mathematics
1 answer:
aliya0001 [1]2 years ago
5 0

Okay, so since the discount is 60% of the price and it comes out to $2.8, we are going to form the following expression, where x is the original price.

60% of x = 2.8

Simply means: 60/100 * x = 2.8

You solve for x, which comes out to $4, which is your original price.


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Line A has an equation of y=-2/5x + 3. What is the slope of a line perpendicular
Nat2105 [25]

Answer:

\frac{5}{2}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{2}{5} x + 3 ← is in slope- intercept form

with slope m = - \frac{2}{5}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{2}{5} } = \frac{5}{2}

5 0
3 years ago
The price of a cd is $16 if the sales tax is 4% what will be the total price of the cd
djverab [1.8K]
Well u would turn 4 into a decimal. this is 0.04. then multiply it by 16. that answer will be added to the original price 16. this would be the answer.
6 0
3 years ago
If J = 12 then J/3 + 3 What is J
kolbaska11 [484]
Well, you're given that J=12. I think the extra information is extraneous, unless there's something more that you forgot to add.
Hope I could be of some assistance. :)
6 0
3 years ago
Read 2 more answers
Need help with this questsion answer as a dollar amount
makkiz [27]

Answer:

100,000,000,000

Step-by-step explanation:

10^6 = 1,000,000. So one million computer programmers.

They're all making 10^5. So 100,000.

1,000,000 * 100,000, since every single one is making 100k.

Therefore, $100,000,000,000 is your answer.

Remember not to include the dollar sign!

8 0
3 years ago
At a school carnival is the diameter of the map of a trampoline has 12 feet and the diameter of the metal frame is 14 feet what
Lisa [10]

Answer:

The length of the steel frame will be approximately 44 feet

Step-by-step explanation:

We can solve this problem by calculating the circumference of the steel frame. We are working with the fact that the steel frame was welded into a circular shape.

The circumference of the steel frame can be calculated using

circumference = \pi \times d

where d diameter of the steel frame = 14 feet

circumference = 3.14 \times 14=43.96ft

Therefore, the length of the steel frame will be approximately 44 feet

6 0
3 years ago
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