3 years ago

Help ASAP!!!!!!!!!!!!!!!

Mathematics

1 answer:

Advocard [28]3 years ago

7 0

Answers D. and E. are correct.
I think that B might also be correct, I hope This helps.

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3. For the equation-4y = &r, what is the constant of variation? (1 point)<br> ООО<br> 02

alexandr1967 [171]

Answer:

3).

$- 4y = 8x \\ \frac{y}{x} = \frac{8}{ - 4} \\ \frac{y}{x} = - 2 \\ y = - 2x \\ hence \: constant \: is \: - 2$

4).

$y \alpha x \\ y = kx \\ where \: k \: is \: the \: constant \: of \: proportionality \\ when \: y = 24 \: and \: x = 8 \\ substitute \: in \: y = kx \\ 24 = 8k \\ k = \frac{24}{8} \\ k = 3 \\ value \: of \: constant = 3$

If it was by 10, k = 3 by 10

k = 30

5).

$general \: equation \: of \: line \\ y = mx + c \\ but \: m = \frac{2}{3} \: and \: c = 9 \\ substitute \: for \: m \: and \: c \: in \: y = mx + c \\ y = \frac{2}{3} x + 9 \\ alternatively \\ 3y = 2x + 27$

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3 years ago

The sum of four consecutive even integers is 180. what is the smallest integer?

n200080 [17]

42
let the smallest even number be x, than the four even numbers are x, x+2, x+4, x+6, their sum is 180

x+x+2+x+4+x+6=180
4x+12=180
4x=168
x=42
the smallest even number is 42.

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3 years ago

Norah wants to download 2 different applications on her phone. 1 used 2.42 megabytes. The other 1 used 1.76. How many total mega

CaHeK987 [17]

I believe you add 2.42 and 1.72

3 0

3 years ago

Read 2 more answers

Standard form 6000000+80000+10

SIZIF [17.4K]

6,080,010 hope this helps you

8 0