MATHEMATICS HIGH SCHOOL

Three of the thirty computers are out of service (not working). What percent are working?

Answers

Answer 1

Answer:

Answer:

Percentage of computers working equals:

90%

Step-by-step explanation:

Three of the thirty computers are out of service.

Number of computers working=30-3=27

Total computers=30

Percentage of working computers=

= 90%

Hence, Percentage of computers working is:

90%

Answer 2

Answer:

Answer :

90%

Step-by-step explanation:

3/30 = 10% and the remaining percent is 90%

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Write a decimal in tenths that is less than 3.81 but greater than 3.0

olivia deposits $6,952 in a savings account paying 3.72% interest. to the nearest dollar, how much money does olivia have in total after sixteen years?

Answers

The principal, P is $6 952.

Interest, R is 3.72% per year.

Time T = 16 years.

For simple interest, Amount A = P(1 + RT)

For compound interest, A = P(1+R)^T

a) If the money was saved as Simple Interest, Amount A

A = 6952 * (1 + 3.72% * 16)

A = 6952 * ( 1 + (3.72/100) * 16 )

A = 6952 * ( 1 + 0.5952)

A = 6952 * 1.5952

A = 11 089.8304

Amount if savings was simple interest, Amount at the end of 16 years =

$11 089.83

b) If the money was saved as Compound Interest, Amount A

A = 6952 * (1 + 3.72%)^16

A = 6952 * ( 1 + (3.72/100))^16

A = 6952 * ( 1 + 0.0372)^16

A = 6952 * 1.0372^16. Using your calculator.

A = 12 471.24735

Amount if savings was compounded interest, Amount at the end of 16 years =

$12 471.25

The question is was the amount saved as Simple Interest or Compound Interest?

It was not stated, but it is normal to use compound interest in real life.

I hope this helped.

In Vancouver, the high temperature for the day was 6° C. On the same day, the high temperature in Calgary was −3° C. What was the difference in high temperatures between the two cities?

Answers

Answer:

Step-by-step explanation:

|6|+|-3|=9

Ralph bought and 8foot long copper pipe he used 85 investors of the copper pipe how many inches of pipe were left over

Answers

Convert the total length of the pipe from feet to inches.

1 foot = 12 inches.

8 feet x 12 inches = 96 total inches.

96 inches - 85 inches = 11 inches are left over.

Final answer:

After converting the length of an 8-foot copper pipe to inches, we find it is 96 inches long. Ralph used 85 inches of the pipe, leaving 11 inches of the copper pipe leftover.

Explanation:

Ralph bought an 8-foot long copper pipe. Initially, we need to convert the length of the pipe from feet to inches since the part used is given in inches. 1 foot equals 12 inches, so an 8-foot pipe is 8 * 12 = 96 inches long. Ralph used 85 inches of the pipe. So, to find out how much is left over, we subtract the amount used from the total length of the pipe: 96 inches - 85 inches = 11 inches. Therefore, Ralph has 11 inches of copper pipe left over.

Learn more about Length Conversion here:

brainly.com/question/22250003

#SPJ12

The amount of money in an account with continuously compounded interest is given by the formula A = Pert , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes for an amount of money to double if interest is compounded continuously at 3.1%. Round to the nearest tenth.

Answers

A=future amount
P=present amount
r=rate in decimal
t=time in years

when A=2P, then that is double
A=Pe^(rt)
2P=Pe^(rt)
divide by P
2=e^(rt)
r=3.1% or 0.031 solve for t
2=e^(0.031t)
take the ln of both sides
ln(2)=0.031t
divide both sides by 0.031
(ln(2))/0.031=t
use calculator
22.359=t
round to tenth
22.4 years to double

It will take approximately 1.04 years to double the principal amount.

Use long division to find the quotient, q(x), and remainder, r(x)

(x2-2x-15) / (x-5)