(2.5 • 10^4) - (1.5 • 10^3)

Evaluate please, can you show the steps

Answers

Answer 1

Answer:

According to PEMDAS, you would look in the parenthesis first. In the first set of parenthesis we have an exponent. 10x10x10x10 is 10,000. Then we multiply this by 2.5. We now have 25,000. We put this to the side..

Next, we do the same thing on the other side -- 10x10x10 is 1,000 and then you multiply that answer by 1.5 and we have 1,500. Now we can subtract. 25,000 - 1500 = 23,500 :)

Related Questions

12x - 84 = 4x + 12. What does X equal?
Dennis wants to buy a card for his wife. Dennis calculates the amount of the card as $ 4.50. The actual price of the card is $4. What is Dennis's % error?
How do you find a like term for 25ab
What is 825 divided by 7
A number increases by 10%, and then decreases by 10%. Will the result be greater than, less than, or equal to the original number?

What is the exact volume of the cylinder? A. 780 in^3

B. 390 in^3

C.5070 in^3

D.11,700 in^3

Answers

Volume of the cylinder=area (circle) x height

1) we calculate the area of the circle.
area of the circle=πr²
r=13 in.

area of the circle=π(13 in)²=169π in²

2) we calculate the volume of the cylinder:
area (circle)=169π in²
height=30 in
volume=169π in² x 30 in=5070π in³ ≈ 15927.87 in³

Answer: 5070π in³ or 15927.87 in³

the answer your looking for is C=5070 you would do 13*13*30 and it gives you C

7/8 - 1/3 =

Reduce to lowest terms.
please help
thank you

Answers

Here is your answer:

7 × 3 = 21

8 × 3 = 24

1 × 8 = 8

3 × 8 = 24

21 - 8 = 13

= 13/24 (since how 13 and 24 cannot be reduce)

Hope this helps!

~Nonportrit

Hey there!

First, we need to bring 7/8 and 1/3 to have the same denominator (we do this so we will be able to subtract easier).

To do that all you will need find a number, both 3 and 8 go into, or multiply them, (the closest to those numbers), this would be 24. The work is shown below:

7/8 times 3/3 is 21/24

1/3 times 8/8 is 8/24

Therefore this is the same equation.

Solve.

21/24 - 8/24 = 13/24

This cannot be simplified.

So, your answer is 13/24.

Hope this helps, and sorry if I was confusing!

How to find the unit rate of 14lb for $2.99

Answers

Okay so let's try to find the amount of money needed to buy 1 lb. Therefore, let's divide the fraction by 14.
$(14)/(2.99)$
Then we'll divide both the numerator and denominator by 14.
$(14)/(2.99)$ ÷ $(14)/(14)$
Then we simplify and get:
14÷14=1 2.99÷14=.2135 We can round that to .21
The unit rate for each pound would be 1:.21
I don't know if that helped, but yeah. :)

Look at the units.
If you divide (2.99 dollars) by (14 lb), the quotient will be
(dollars per pound),which is exactly what you want.

At lunch, 8 friends share 6 sandwiches equally. What fraction of a sandwich does each friend get?

Answers

The fraction of a sandwich each friend get is 3 / 4.

What are a ratio and proportions?

An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value.

In mathematics, ratios are used to determine the relationship between two numbers it indicates how many times is one number to another number.

It is given that 8 friends share 6 sandwiches equally. The fraction will be calculated as below:-

Fraction = 6/8

Divide the number 6 by 8.

Fraction = 3/4

Therefore, the fraction of a sandwich each friend get is 3 / 4.

To know more about ratios and proportions follow

brainly.com/question/12024093

#SPJ2

8 friends share 6 sandwiches equally ⇒ fraction = 6/8 = 3/4 of a sandwich for each friend get

In 1950, there were 40.3 million cars registered in the United States. In 1990, there were 133.7 million cars registered in the United States. What was the percent increase of registered cars from 1950 to 1990?

Answers

$(133.7)/(40.3)*100\%\approx331,76\%$

Final answer:

The number of registered cars in the US increased by about 231.76% from 1950 to 1990, calculated by finding the difference between the two given values, then dividing this by the initial value and multiplying by 100 to get the answer as a percentage.

Explanation:

The question is asking for a percent increase in the number of registered cars in the United States from 1950 to 1990. To calculate a percent increase, you first need to determine the amount of the increase, then divide this by the original amount, and multiply by 100 to get the answer in percent form.

The number of registered cars in the United States increased from 40.3 million in 1950 to 133.7 million in 1990. The amount of increase is therefore 133.7 (1990 number) - 40.3 (1950 number) = 93.4 million.

Next, we find the percent increase by dividing the increase by the original (1950) amount and multiplying by 100: (93.4 / 40.3) x 100 = Approximately 231.76%. So, there was roughly a 231.76% increase in the number of registered cars in the United States from 1950 to 1990.