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2 years ago

Just need formulas not the whole explanation

Mathematics

1 answer:

Leona [35]2 years ago

4 0

Multiply all the sides , 5x3x6 + 3x7x16

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You deposit $2000 in an account earning 6% interest compounded monthly. How much will you have in the account in 15 years?

Zepler [3.9K]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 6\%\to \frac{6}{100}\dotfill &0.06\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &15 \end{cases} \\\\\\ A=2000\left(1+\frac{0.06}{12}\right)^{12\cdot 15}\implies A=2000(1.005)^{180}\implies A\approx 4908.19$

7 0

3 years ago

for what value of the variable the value of the expression 4(5x-8) is 4 more than the value of the expression 2(4-x)

Zigmanuir [339]

Answer:

For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)

Step-by-step explanation:

Given expressions are;

4(5x-8) and 2(4-x)

For 4 more than the second expression, we will add 4 with second expression.

4(5x-8) = 2(4-x) + 4

20x - 32 = 8 -2x +4

20x + 2x = 12 + 32

22x = 44

Dividing both sides by 22

$\frac{22x}{22}=\frac{44}{22}\\x=2$

Hence,

For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)

7 0

3 years ago

What is the area of the composite figure? Enter your answer as a decimal in the box. cm2

OverLord2011 [107]

Area = 7 x 7 + 1/2 x 7 x 3
= 49 + 10.5
= 59.5cm2

8 0

2 years ago

Help me on question 1 please!!!!

Natalka [10]

Yes I do believe they are similar.

7 0

2 years ago

n a jar of coins, the ratio of nickels to dimes is 5:7. If the jar contains 350 dimes, how many nickels are there?

irina1246 [14]

Answer:

250 nickles

Step-by-step explanation:

Nickles and dimes are coins with different currency values. One nickel(N) is equal to 5 cents while one dime(D) is equal to 10 cents. The ratio of nickel:dime is 5:7, to put into the equation it will be:

N/D= 5/7

7N=5D ---> 1st equation

There are 350 dimes, the equation will be:

D=350 ----> 2nd equation

We can find out the number of nickels by substitute the 2nd equation into the first. The calculation will be

7N=5D

N= 5D/7

N=5(350)/7

N= 250

4 0

3 years ago

Just need formulas not the whole explanation​

Just need formulas not the whole explanation