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andrezito [222]
3 years ago
9

Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is Daniel now

Mathematics
1 answer:
matrenka [14]3 years ago
7 0
<span>K = 3D. K - 4 = 5(D - 4). K - 4 = 5D - 20. K = 5D - 16. 3D = 5D - 16. 16 = 2D. D = 8. K = 3 x 8. K = 24.</span>
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- vnuәуре отти аропс
Daniel [21]

equation in slope-intercept form is:

y=9x+7

Step-by-step explanation:

The general form of slope-intercept form is:

y=mx+b

where m is the slope and b is the y-intercept

In the question we are given slope m=9 and a point(0,7)

We will find b i.e y-intercept

y=mx+b\\7=9(0)+b\\7=0+b\\b=7

So, value of b=7 and value of slope m=9

So, equation in slope-intercept form is:

y=9x+7

Keywords: slope-intercept form

Learn more about slope-intercept form at:

  • brainly.com/question/12954015
  • brainly.com/question/1979240
  • brainly.com/question/2601054

#learnwithBrainly

8 0
3 years ago
ILL GIVE U 20 POINTS AND BRAINLIEST, pls hurry!
serious [3.7K]

Answer:

(1/2,5)

Step-by-step explanation:

4 0
3 years ago
Someone help please
fiasKO [112]

It is 4pi/7, or b. Just want to help ;)

4 0
3 years ago
Question 1: An online music store is offering a promotion. When you spend $30 or more, you receive 3 songs for free. You buy an
ch4aika [34]

Answer:

10 + m  ≥ 30

You must spend AT MOST $20 or more

Step-by-step explanation:

Basically you have already spent 10 dollars and you have to pay MORE than or equal to 30. You cannot pay less than because you want the free songs. So the sign has to be  ≥ or the inequality will not be true.

10 + m  ≥ 30

10 - 10 + m  ≥ 30 - 10     ( subtract 10 from each side to isolate m)

m  ≥ 20     ( we are left with this )

The answer is :

m  ≥ 20

You must spend at most 20 dollars more to get the 3 free cd's. Your welcome :D

5 0
3 years ago
Helpppppppppppppppppppp
vagabundo [1.1K]

Answer:

the cyan one b is greater than or equal to -16

Step-by-step explanation:

okay so b is at least (at least being the keyword) -16, at least means that -16 is the minimum

hope this helps:)

4 0
3 years ago
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