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katrin [286]
3 years ago
5

Solve the system of equations: 2x + 3y = 4 2x = 7y + 24

Mathematics
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer: x= 5 and y= -2 or (5,-2)

Step-by-step explanation:

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All of the following are equivalent except _____.<br> 4 · y<br> 4 + y<br> 4y<br> (4)(y)
DENIUS [597]
The answer is: [B]: 4 + y .
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The rest of the answer choices given are all different ways to express, or are equivalents of, the number "4", multiplied by the variable, "y".
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5 0
3 years ago
Read 2 more answers
11. Mr Lee bought a second hand car for
Marrrta [24]

Answer :

Depends on the rate compound interest is accrued. See answers.

Step-by-step explanation:

We need the compound interest formula which is:

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

A =  final amount

P =  initial principal balance

r =  interest rate

n =  number of times interest applied per time period

t =  number of time periods elapsed

It doesn't say how frequently the interest is compounded, so we will do monthly, quarterly, and yearly.

MONTHLY

So we know the car costs $25,480 and he made a down payment of $10,000. By subtracting the down payment from the purchase price we find the loan amount.

$25,480 - $10,000 = $15,480

P = 15,480

r = 4.75% = .0475

n = 12  (12 months in a year)

t = 2  

Plug everything into the compound interest formula.

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

A = 15480(1+\frac{.0475}{12})^{12*2}

A = 15480(1+\frac{.0475}{12})^{24}

A = 15480(1+.00396)^{24}

A = 15480(1.00396)^{24}

A = 15480*1.0992

A = $17016.14

Mr. Lee paid $17,016.14 when the bill came due at 2 years with interest compounded monthly.

QUARTERLY

P = 15,480

r = 4.75% = .0475

n = 4  (4 quarters in a year)

t = 2  

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

A = 15480(1+\frac{.0475}{4})^{4*2}

A = 15480(1+\frac{.0475}{4})^{8}

A = 15480(1+.0119})^{8}

A = 15480(1.0119)^{8}

A = 15480*1.099

A = 15480(1.099)

A = 17013.20

Mr. Lee paid $17,013.20 when the bill came due at 2 years with interest compounded quarterly.

YEARLY

P = 15,480

r = 4.75% = .0475

n = 1  

t = 2  

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

A = 15480(1+\frac{.0475}{1})^{1*2}

A = 15480(1+\frac{.0475}{12})^{2}

A = 15480(1+.0475})^{2}

A = 15480(1.0475)^{2}

A = 15480*1.0973

A = 16985.53

Mr. Lee paid $16,985.53  when the bill came due at 2 years with interest compounded yearly.

4 0
3 years ago
I need help about the maximum y - value
klemol [59]
The maximum Y value should be 10
7 0
3 years ago
What is the answer to this question
Ivanshal [37]

Answer:

-(4,-3)

Step-by-step explanation:

You need to find the slope from point o to b, and then multiply it three times to get to b prime.

5 0
3 years ago
Read 2 more answers
Jackson earned 22 out of 25 points on a class project. Determine the percentage grade that he earned by setting up an equivalent
svlad2 [7]

Answer:

it would be a 85 percent

Step-by-step explanation:

5 0
3 years ago
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