3 years ago

Write the equation of line in slope-intercept form.

Mathematics

1 answer:

Galina-37 [17]3 years ago

7 0

y=3x-7 that's the answer

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-2x = 16–8y x+4y= 25 Solve by substitution

ra1l [238]

Answer:

( $\frac{17}{2}$ , $\frac{33}{8}$

Step-by-step explanation:

Given the 2 equations

- 2x = 16 - 8y → (1)

x + 4y = 25 → (2)

Rearrange (2) expressing x in terms of y by subtracting 4y from both sides

x = 25 - 4y → (3)

Substitute x = 25 - 4y into (1)

- 2 (25 - 4y) = 16 - 8y ← distribute left side

- 50 + 8y = 16 - 8y ( add 8y to both sides )

- 50 + 16y = 16 ( add 50 to both sides )

16y = 66 ( divide both sides by 16 )

y = $\frac{66}{16}$ = $\frac{33}{8}$

Substitute this value into (3) for corresponding value of x

x = 25 - 4 × $\frac{33}{8}$ )

= $\frac{50}{2}$ - $\frac{33}{2}$ = $\frac{17}{2}$

Solution is ( $\frac{17}{2}$ , $\frac{33}{8}$ )

5 0

2 years ago

Dylan invested $93,000 in an account paying an interest rate of 3% compounded quarterly. Assuming no deposits or withdrawals are

Andreas93 [3]

The final balance is $154,577.63 or

The total compound interest is $61,577.63

Step-by-step explanation:

6 0

2 years ago

A = 1/2bh b= 12 h = 7 how to I go about getting this answer?

Finger [1]

I know it is a triangle so 12×7=84÷2=42

4 0

2 years ago

What is the solution for the system of equations? 2y=4x-12 and y=-2x+2

pashok25 [27]

$2y = 4x - 12 \\ y = - 2x + 2 \\ \\ 2( - 2x + 2) = 4x - 12 \\ - 4x + 4 = 4x - 12 \\ 4 = 8x - 12 \\ 16 = 8x \\ 2 = x \\ \\ y = - 2(2) + 2 \\ y = - 4 + 2 \\ y = - 2$
(2,-2)

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2 years ago

Caitlin has finished her schooling and training to be a dental hygienist. She has two job offers that she is considering.

Snezhnost [94]

Answer:

Job 2 is better so pick it

Step-by-step explanation:

Trust me

3 0

1 year ago