3 years ago

Picturez plzz dont answer this if you dont have pictures

1 answer:

4 0

2.91+1.8=4.71

and im guessing that you need to shade in the boxes sooo... you need to shade in 4 whole boxes and 71% of the fifth box...since the boxes are 10 by 10
>>shade in 7 rows and shade in one box in the 8th row

hope this helps

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Taya2010 [7]

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2 years ago

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

alexandr1967 [171]

Answer:

3).

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

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

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k = 30

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