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3 years ago

10

Simplify this please

2 answers:

Drupady [299]3 years ago

6 0

Answer:

1

Step-by-step explanation:

igor_vitrenko [27]3 years ago

4 0

Answer:

2 1/2

Step-by-step explanation:

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Which table shows a proportional relationship between x and y?

ladessa [460]

Y 6 8 10 12 X - because it increases at a constant rate of 2

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3 years ago

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What is the solution to 3x -2y =1 and 4y = 7 + 3x

Delvig [45]

Given.

$3x-2y=1$ (1)

$4y=7+3x$ (2)

Re-arrange equation (2)

$(4y=7+3x)-4y$

$0=-4y+3x+7$

$(0=-4y+3x+7)-7$

$-7=-4y+3x$

Multiply equation (2) by -1

$-1(3x-4y=-7)$

$-3x+4y=7$ (3)

Combine like terms and solve.

$3x-3x-2y+4y=1+7$

$2y=8$

Divide by (2y) and solve for (y).

$\frac{2y}{2}=\frac{8}{2}$

$y=4$

Substitute (y) for equation (1).

$3x-2y=1$

$3x-2(4)=1$

$3x-8=1$

Add (8) to both sides.

$(3x-8)+8=(1)+8$

$3x=9$

Divide by (3).

$\frac{3x}{3}=\frac{9}{3}$

$x=3$

Check your work.

$3x-2y=1$

$3(3)-2(4)=1$

$9-8=1$

$1=1$

$4y=7+3x$

$4(4)=7+3(3)$

$16=7+9$

$16=16$

Your answers is $x=3$ and $y=4$

8 0

3 years ago

Y= 1/3X + 3 what is the y-intercept and what is the slope

Anton [14]

Answer:

slope=1/3

y-int=3

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4 years ago

8. Find all the real fourth roots of 256

mezya [45]

X^4=256
x^4-256=0
(x^2)^2-(16)^2=0
(x^2+16)(x^2-16)=0
either x^2+16=0
it gives complex roots.
or x^2-16=0
or x^2-4^2=0
(x+4)(x-4)=0
either x+4=0,x=-4
or x-4=0
x=4

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3 years ago

How much does mark earn at groovy grocery s if he works 20 hours ? 40 hours ? 60 hours ? When gets paid 8 an hour plus a one tim

Tpy6a [65]

Hey there,
20 hours = $100 + ($8 x 20)
= $260
40 hours = $8 x 40
= $320
60 hours = $8 x 60
= $480

Hope this helps :))

~Top

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3 years ago

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