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3 years ago

What is the value of y when x equals 4 in the equation -3x+9y=-57?

2 answers:

8 0

So what you would do is put in the 4 where ever you see an x. so it would look like -3(4)+9y=-57 then you solve for y. and the answer is -5. Make sense?

zzz [600]3 years ago

6 0

-3(4) +9Y=-57
12+9y=-57
9y=-57+12
9y=-45
y=-5

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Lady_Fox [76]

Answer:

Step-by-step explanation:

(-4 - 4)/(6 + 2)= -8/8= -1

y - 4 = -1(x + 2)

y - 4 = -x - 2

y = -x + 2

3 0

3 years ago

Work out b(4½-3⅔)+1⅔

Zolol [24]

Answer:

2 $\frac{1}{2}$

Step-by-step explanation:

Change the mixed numbers to improper fractions

( $\frac{9}{2}$ - $\frac{11}{3}$ ) + $\frac{5}{3}$ ← the LCM of 2 and 3 is 6

= $\frac{9(3)}{2(3)}$ - $\frac{11(2)}{3(2)}$ + $\frac{5(2)}{3(2)}$

= $\frac{27}{6}$ - $\frac{22}{6}$ + $\frac{10}{6}$

= $\frac{5}{6}$ + $\frac{10}{6}$

= $\frac{15}{6}$

= $\frac{5}{2}$

= 2 $\frac{1}{2}$

6 0

3 years ago

A2+3b−12<br> a=6<br> and b=2<br><br> answer plsss

ICE Princess25 [194]

(6×2)+(3×2)-12

the answer is 6

hope that helps:)

4 0

3 years ago

Which expression results from dividing 6x^8-4x^6 by 2x^2

pogonyaev

$\frac{6 {x}^{8} - 4 {x}^{6} }{2 {x}^{2} } = \frac{2 {x}^{6}(3 {x}^{2} - 2) }{2 {x}^{2} } = 2 {x}^{4}(3 {x}^{2} - 2)$

6 0

3 years ago

Read 2 more answers

What is the parent function of the graph?

Alik [6]

Answer:

y = |x| – 4

Step-by-step explanation:

If we substitute x as 0, we get -4 therefore this is the answer.

8 0

3 years ago