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quester [9]
3 years ago
5

Use the linear combination method to solve the system of equations. Explain each step of your solution.

Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

1)y=-3+5x

2)y=5/2-1/2x

Step-by-step explanation:

for both equations

1) get your y by it self (subtract -5x and your new equation is now -y=-5x+3)

2)(reminder y can't be negative if it is negative) then you divide by -1 of both sides

3) your equation should now be y=5x-3

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Toby just graduated from four years of college. at the beginning of each year, he took out a stafford loan with a principal of $
Mila [183]

If he starts paying after four years, the worth of the loans by then is b. $31,616.16

<h3>What is a Loan?</h3>

This refers to the amount collected from a lender to be repaid after a given time, usually with added interest.

Hence, we can see that:

The effective monthly interest rate is:

i = 0.053/12 = 0.0044

The effective annual interest rate is:

i = (1 + 0.0044)^12 -1 = 0.0543

The present worth of all the loans is:

P = 6125 + 6125 (1 + 0.0543)^-1 + 6125 (1 + 0.0543)^-2 + 6125(1 + 0.0543)^-3

P = $22,671.40

If he pays them prompty, then the total lifetime cost would be

P = 22671.40 (1 + 0.0543)^4 = $31,616.16

Read more about loans here:

brainly.com/question/2363571

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6 0
2 years ago
Does any body know how to prove a parallelogram with statements and reasons
murzikaleks [220]
Because the lines are parallel,

The width of that rhombus, or parallelogram.

If you conutined that line, they will never ever touch.

That is the meaning of parallel, and why it is a parallelogram.

7 0
2 years ago
PLEASE ANSWER I AM IN MIDDLE OF THE TEST
Lena [83]
The answer is 6/13 at least
5 0
3 years ago
Read 2 more answers
In a race, Brian Collins has to cross 10 hurdles. The probability that he clears a hurdle is 2/3. Find P(clears all hurdles).
Gnom [1K]

Answer:

1024/59049

Step-by-step explanation:

P( clear hurdle) = 2/3

There are 10 hurdles

P ( clear all hurdles) = P( clear hurdle) * P( clear hurdle)...... 10 times

                                 = 2/3 * 2/3 *....... 10 times

                                  = (2/3) ^ 10

                                  =1024/59049

5 0
2 years ago
Read 2 more answers
4b) Work out the mean and standard deviation of the following: picture included
Jlenok [28]

Answer:

Yes, your simultaneous equations are correct;

Solve them like so:

170 + 1.6449σ = 180 - 0.8416

2.4865σ = 10

σ = 4.0217...

μ = 170 + 1.6449(4.0217...)

μ = 176.615...

MS is correct, you must've made an error in solving or rearranging

4 0
2 years ago
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