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3 years ago

What is the solution to the system of equations?

Mathematics

1 answer:

Jlenok [28]3 years ago

4 0

Answer:

The solution would be (-19, 40)

Step-by-step explanation:

In order to solve this system by substitution, simply take the value of y in the first equation and use it in place of y in the second. This will allow you to solve for x.

5x + 2y = 15

5x + 2(-3x - 2) = 15

5x - 6x - 4 = 15

-x - 4 = 15

-x = 19

x = -19

Now that we have the value of x, we can find the value of y.

y = -3x - 3

y = -3(-19) - 3

y = 43 - 3

y = 40

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Finger [1]

Answer:

A. 6

Step-by-step explanation:

$a^{2}$ + $b^{2}$ = $c^{2}$

$3^{2}$ + $5^{2}$ = $c^{2}$

$3^{2}$ =9

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4 years ago

Principal==12,000 interest is 5.6%..for 5 years.how much interest will I pay.

Keith_Richards [23]

Answer:

Step-by-step explanation:

IF Simple interest; Simple Interest formula would be

<em>S.I = Principal *rate * time</em>

Principal = 12,000

rate = 5.6% or 0.056 as a decimal

time = 5 years

therefore S.I = 12,000 * 0.056 * 5

S.I = 3,360

Therefore, based on simple interest, you will pay $3,360 in interest.

IF Compound interest, the formula would be;

Compound interest = [ Principal *(1+rate )^t ] - Principal

= [ 12,000*(1+0.056)^5 ] -12,000

= [12,000*1.313165883] - 12,000

=15,757.9906 -12,000

= 3,757.9906

Therefore, based on compounding, you will pay $3,757.9906 in interest.

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4 years ago

A line passes through point (-6, -8) and has a slope of

vlada-n [284]

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3 years ago

Which of the following are solutions to the equation below?

katrin2010 [14]

First simplify then solve.

$4x^2+20x+25=49 \\4x^2+20x-24=0 \\4(x^2+5x-6)=0 \\x^2+5x-6=0\Longrightarrow(x+6)(x-1)=0 \\\boxed{x_1=-6, x_2=1}$

We find there are two solutions. In your case the correct answers are A, C, D

Hope this helps.

r3t40

Hope this helps.

r3t40

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3 years ago

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guapka [62]

Answer:

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The T-Chart is a handy graphic organizer students can use to compare and contrast ideas in a visual representation. T-Charts can be used in any content area or genre, such as with books or book characters, scientific phenomena, or social studies events.

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3 years ago