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Zanzabum
3 years ago
10

16 POINTS

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0
Solve the following system using elimination:
{7 x + 2 y = -19 | (equation 1)
{2 y - x = 21 | (equation 2)

Add 1/7 × (equation 1) to equation 2:
{7 x + 2 y = -19 | (equation 1)
{0 x+(16 y)/7 = 128/7 | (equation 2)

Multiply equation 2 by 7/16:
{7 x + 2 y = -19 | (equation 1)
{0 x+y = 8 | (equation 2)

Subtract 2 × (equation 2) from equation 1:
{7 x+0 y = -35 | (equation 1)
{0 x+y = 8 | (equation 2)

Divide equation 1 by 7:
{x+0 y = -5 | (equation 1)
{0 x+y = 8 | (equation 2)

Collect results:
Answer: {x = -5, y = 8
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Micheal is 5 years older than Rui Feng and Vishal is thrice as old as Micheal if Rui Feng is p years old, find i) Michael's pres
Kitty [74]

Answer:

Michael's present age = p + 5

Michael's present age = 3p + 15

Sum of there ages 6 year age = 5p + 38

Sum of there ages 3 year ago = 5p - 11

Step-by-step explanation:

Assume;

Age of Rui Feng = x

Age of Micheal = x + 5

Age if Vishal = 3[x+5]

Given:

Age of Rui Feng = P

Computation:

Michael's present age = Age of Rui Feng + 5

Michael's present age = p + 5

Vishal's present age = 3[p + 5]

Michael's present age = 3p + 15

Sum of there ages 6 year age = [p + 6] + [p + 5 + 6] + 3[p + 5] + 6

Sum of there ages 6 year age = 5p + 38

Sum of there ages 3 year ago = [p - 3] + [p + 5 - 3] + 3[p + 5] - 3

Sum of there ages 3 year ago = 5p - 11

8 0
3 years ago
A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost? Correct Answer Gets Brain
KatRina [158]

Answer:

0.10

Step-by-step explanation:

If together the ball and bat cost $1.10 and the bat cost one more dollar than the ball than you would have too subtract $1 from what the ball and bat together. so 0.10 would be left

8 0
3 years ago
Read 2 more answers
Aliyah had some candy to give to her four children. She first took ten pieces for herself and then evenly divided the rest among
9966 [12]

Answer:

Step-by-step explanation:

Each child received two pieces.

So total   pieces received by 4 children = 4*2 = 8

Total pieces = 10 + 8 = 18

3 0
3 years ago
Read 2 more answers
Use the percent formula, A = PB, where A is P percent of B, to answer the following question. What is 24% of 60?
Paladinen [302]

It should be noted that 24 percent of 60 is 14.4.

<h3>How to calculate the percentage?</h3>

The question is to calculate 24% of 60.

This will go thus:

= 24% × 60

= 24/100 × 60

= 0.24 × 60

= 14.4

Therefore, 24% of 60 is 14.4.

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brainly.com/question/24877689

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6 0
2 years ago
Assuming you are a business owner with different shareholders. How may zero growth stock valuation and constant stock valuation
Katarina [22]

The ways that zero growth stock valuation can affect business operations is that:

  • When zero-growth model states that the dividend is at the same rate, it shows that one has no measure of growth in terms of dividends. This therefore  shows that stock price is equal to the annual dividends and divided also by the needed  rate of return.

<h3>What ways does constant stock valuation affect business operations?</h3>

The Constant  stock valuation  is known to be a kind of share evaluation as it states that the dividends paid by a firm will consistently increase at a constant growth rate.

This will help one to know especially investors on how to set or know the fair price that one needs to pay for a stock on daily basis today by due to future dividend payments.

The overall statement is that  stock value affect one's business operations as  the company's stock price is one that shows an investor perception of their capability to get profit and also if they can grow their profits in terms of future times.

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7 0
1 year ago
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