MATHEMATICS MIDDLE SCHOOL

Jerry has 61 percent on khan. She needs to get 100 percent in one week. How much percent should she get each night to reach her goal of 100%??????????.

Answers

Answer 1

Answer:

Answer:

She would need to complete 5.57 each noght to reach her goal of 100%.

Step-by-step explanation:

39/7 is equal to 5.57

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cody spent half of his allowance on candy. to earn more money his parents let. him wash the car for $7. what is his weekly if he ended with $17
The product of x and −7 twelfths is −0.6. What is the value of x?
Original price: $45.00;markdown: 22%
Can you help me with the first two questions?

A car wash detailed 288 cars in 9 hours. At what rate did the car wash detail cars in cars per hour? A. 31 cars per hour B. 33 cars per hour C. 30 cars per hour D. 32 cars per hour

Answers

Divide the number of cars by the number of hours:

288 / 9 = 32 cars per hour.

A stadiun holds 50,000 people. The stadium is divided into 250 different seating sections. How many seats are in each section?

Answers

50,000/250= 200 There are 200 seats in each section.

50,000 / by 250=200.

Cheese costs $4.20 per pound. If Ms.Rivera spent $6.30 on cheese, how many pounds did she buy? A. 15 B. 10.5 C. 1.05 D. 1.5

Answers

the answer is 1.5(d)

work:
6.30/4.20=1.5

:D

You want to have $3000 in your savings account after 3 years. Find the amount you should deposit for each of the situations described below.a. the account pays 3% annual interest compounded quarterly
b. the account pays 2.25% annual interest compounded monthly
c. the account pays 2% annual interest compounded daily
(SHOW YOUR WORK)

Answers

A) take the annual interest and divide it by 4 since it is compounded quarterly.
.03 ÷ 4 = .0075. Add 1 to include your principal. 1.0075 and raise it to the 12th power since you will be doing this 4 times a year for 3 years (4 x 3 =12).
Since you want 3000 at the end of this period you should do:

3000 ÷ (1.0075¹²) and you get $2742.71 which is how much you should put in.

B) .001875 is the monthly rate of 2.25% (.0225 divided by 12)
This time we have to do it to the 36th power since there are 36 months in 3 years.
Don't forget to add the 1 to include your money.
3000 ÷ (1.001875¹²) = $2804.36

C) 2% compounded daily means .02 ÷ 365 = (about) .00005479
Once again we add our principal by putting a 1 in front 1.00005479
3000 ÷ (1.00005479¹⁰⁹⁵) (1095 because 365 x 3 years = 1095 days)
= $2825.31

Just to emphasize why I always added 1. Since I am dividing, dividing by 1 givesyou the same as you start with (3000 ÷1 is still 3000) The small numbers after the 1 reduce the amount (3000) to the amount you will have to put in to realize $3000 at the end of each time period.

Final answer:

To have $3000 in the savings account after 3 years, you should deposit $2688.97 for situation a, $2669.29 for situation b, and $2667.99 for situation c.

Explanation:

To find the amount you should deposit for each situation, we can use the formula for compound interest:

A = P(1 + (r/n))^(nt)

where A is the final amount, P is the principal amount (the initial deposit), r is the annual interest rate (in decimal form), n is the number of times interest is compounded per year, and t is the number of years.

Using the given information, we can calculate:

For situation a (3% annual interest compounded quarterly), we have A = $3000, r = 3% = 0.03, n = 4 (since interest is compounded quarterly), and t = 3. Rearranging the formula, we get:
P = A / (1 + (r/n))^(nt) = $3000 / (1 + (0.03/4))^(4*3) = $2688.97 (rounded to two decimal places).
For situation b (2.25% annual interest compounded monthly), we have A = $3000, r = 2.25% = 0.0225, n = 12 (since interest is compounded monthly), and t = 3. Substituting these values into the formula, we get:
P = A / (1 + (r/n))^(nt) = $3000 / (1 + (0.0225/12))^(12*3) = $2669.29 (rounded to two decimal places).
For situation c (2% annual interest compounded daily), we have A = $3000, r = 2% = 0.02, n = 365 (since interest is compounded daily), and t = 3. Plugging these values into the formula, we get:
P = A / (1 + (r/n))^(nt) = $3000 / (1 + (0.02/365))^(365*3) = $2667.99 (rounded to two decimal places).

Learn more about Compound interest here:

brainly.com/question/14295570

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The floor inside the horse barn is 45 feet long and 20 feet wide . The barn has 2 floors ( an upstairs and downstairs ) and both floors has the same size . What is the total area for both floors of the barn

Answers

to find area we multiple length by width

20 times 45 is 900

then multiply that by 2 because there are two floors that are that size

900 times 2 is 1800

the total area for both floors is 1800 square feet

What statement is true

Answers

CF is perpendicular to AE

Since those two triangles are congruent, all of their sides have to be equal as well as their angles. If CF was not equal to AE, then the two corresponding angles of the triangle which are also supplementary angles will not be congruent. The only pair of angle measures that is both supplementary and equal is 90 and 90. I hope this helps!

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160 bananas decreased by 20%

How could you describe this graph?

Simplify using Order of Operations:10 - 3 x 2/1+1

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