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3 years ago

Click on the attachment <3 answer, please and thank you (:

Mathematics

1 answer:

natta225 [31]3 years ago

5 0

Answer:

Step-by-step explanation:

x-7=?

x=17

17-7=10

7+10=17

17=17 Correct :)

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The ratio of boys to girls in a school is 9:11. If there are 400 pupils in the school,how many boys are there

Anvisha [2.4K]

I believe its 180.

I have seen this question before and the amount of girls was 220, so 400-220 is 180

Hope this helps :)

5 0

3 years ago

You are analyzing the survey results tabulated below. The first survey question (yes/no) is whether the respondent is over 40, a

ankoles [38]

2 because the 2 is the number on the left and can be bad and good and uhh yea

7 0

2 years ago

Read 2 more answers

Kameryn types 75 words per minute and is just starting to write a term paper. Joe already has 510 words written and types at a s

NARA [144]

Answer: Kameryn will have typed more words than Joe after 34 minutes

7 0

3 years ago

8. Loren already knows that he will have $500,000 when he retires. If he sets up a payout

Ulleksa [173]

The annuity could provide $221.19 each month

Step-by-step explanation:

The ANNUITY FORMULA is $P_{t}=\frac{d[(1+\frac{r}{n})^{nt}-1]}{\frac{r}{n}}$ , where

1. $P_{t}$ is the balance in the account after t years

2. d is the regular deposit (the amount you deposit each year or month

or .........)

3. r is the annual interest rate in decimal

4. n is the number of compounding periods in one year

5. t the number of years

∵ Loren knows that he will have $500,000 when he retires

∴ $P_{t}$ = $500,000

∵ he sets up a payout annuity for 30 years in an account paying 10%

interest

∴ t = 30 years

∴ r = (10/100) = 0.1

∵ The annuity could provide each month

∴ n = 12

Substitute the values above in the formula

∴ $500,000=\frac{d[(1+\frac{0.1}{12})^{(12)(30)}-1]}{\frac{0.1}{12}}$

∴ $500,000=\frac{d[(1.00833333)^{360}-1]}{0.00833333}$

∴ 500,000 = d [2260.487925]

- Divide both sides by 2260.487925

∴ d = $221.19

The annuity could provide $221.19 each month

Learn more:

You can learn more about deposit in brainly.com/question/8782252

#LearnwithBrainly

8 0

3 years ago

d. If you double a certain number and subtrack 7 you get the same answer as when you add 5 to the number, Determine the number

umka21 [38]

Answer:

Step-by-step explanation:

Let n = the number.

2n - 7 = n + 5

n = 12

Let’s check if we got the right answer by substituting 12 for n into the original equation.

2*12 - 7 = 12 + 5

24 - 7 = 17

17 = 17

4 0

2 years ago

Click on the attachment <3 answer, please and thank you (:​

Click on the attachment <3 answer, please and thank you (: