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vredina [299]
3 years ago
11

Given that x and y vary directly, write the equation relating x and y if x = 3 when y = 24. A) y = 8x B) xy = 8 C) y = 8 x D) y

= x 8 4)
Mathematics
2 answers:
motikmotik3 years ago
8 0

A

given that y varies directly as x, then the relationship is

y = kx ← k is the constant of variation

To find k use the given condition x = 3 when y = 24

y = kx ⇒ k = \frac{y}{x} = \frac{24}{3} = 8

y = 8x


laila [671]3 years ago
7 0

as x and y vary directly, then  if x = 3 and y = 24 , the option A IS THE CORRECT, Y = 8X, y = 8*3 =  24

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borishaifa [10]
A and C are the correct answers.
6 0
3 years ago
Read 2 more answers
Very important!! Solve the inequality 6r + 30 ≥ 12 or -r > 12 (the question is important for high school application c:)
Fofino [41]

First simplify the one inequality, 6r + 30 greater than or equal to 12 just divide by 6 then subtract 30 from both sides of the inequality. You should get r is greater than or equal to -3. For this one you need to reverse the inequality symbol then divide both sides by -1 to get a positive r, and you get r is less than -12. It's not A because there's two solutions, and it's not D for the same reason. It's not C because r isn't greater than -12. In conclusion it's B because it correctly represents the solutions that make the inequality true. I hope this helps you on your high school application :)

7 0
3 years ago
You invest $1,900 At 4% and it’s compounded semi annually for 3 years. How much will your $1,900 Be worth in 3 years?
blondinia [14]
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8 0
3 years ago
If you reflect the image over the x - axis, what are the new coordinates of the shape?
lutik1710 [3]

Greetings!

When reflecting a shape over the x-axis, you simply change the number to its opposite positive/negative equivalent.

This means that the new co-ordinates would be (-5,1) , (-5,4) and (-2,4).


Hope this helps!

8 0
3 years ago
1/3 + a + 5/4. what is A
USPshnik [31]

Answer:

a = -1.58

Step-by-step explanation:

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3 years ago
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