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OleMash [197]
4 years ago
7

How would I write this equation

Mathematics
1 answer:
serious [3.7K]4 years ago
4 0

Answer:

Let the number of brownies made by Rachel and Trish be R and T respectively.

R+T= 84 ---------(1)

R= 5(12)= 60

Substitute into (1):

60 + T = 84

T= 84-60

T= 24

Therefore, number of pans of brownies made by Trish

= 24÷12

=2

Alternatively,

Let the number of pans of brownies made by Trish be x.

Total number of pans of brownies= 84/12= 7

Since Rachel contributed 5 pans,

x+5=7

x= 7-5= 2

Thus, Trish made 2 pans of brownies.

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In 2 years, you want to have $5000 in your savings account. Find the amount you should deposit if the account pays 3% annual int
muminat

The amount you should deposit is $4709.18

Step-by-step explanation:

The formula for compound interest, including principal sum is

A=P(1+\frac{r}{n})^{nt} , where:

  • A is the future value of the investment/loan, including interest
  • P is the principal investment amount
  • r is the annual interest rate in decimal
  • n is the number of times that interest is compounded per unit t
  • t is the time the money is invested or borrowed for

∵ You want to have $5000 in your savings account in 2 years

∴ A = 5000

∴ t = 2

∵ The account pays 3% annual interest, compounded monthly

∴ r = 3% = 3 ÷ 100 = 0.03

∴ n = 12 ⇒ compounded monthly

- Substitute these values in the formula above

∴ 5000=P(1+\frac{0.03}{12})^{(12)(2)}

∴ 5000=P(1+0.0025)^{24}

∴ 5000=P(1.0025)^{24}

- Divide both sides by (1.0025)^{24}

∴ P = 4709.18

The amount you should deposit is $4709.18

Learn more:

You can learn more about the compounded interest in brainly.com/question/2514241

#LearnwithBrainly

3 0
4 years ago
Plz help me with this!
nikdorinn [45]
B is the answer because 12 divided by 6 is 2 and 18 divided by 6 is 3

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