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3 years ago

What is the slope of a line that passes through the points (-8,-3) and (-24,1)

Mathematics

1 answer:

Aneli [31]3 years ago

7 0

Answer:

$- \frac{1}{4}$

Step-by-step explanation:

$gradient = \frac{y1 - y2}{x1 - x2}$

$slope \: of \: line \\ = \frac{1 - ( - 3)}{ - 24 - ( - 8)} \\ = \frac{1 + 3}{8 - 24} \\ = \frac{4}{ - 16} \\ = - \frac{1}{4}$

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1. -x=10y 2. y+8=-x 3. -4+7x+4=3y

fiasKO [112]

Answer:

1 y=-1/10x

2 y=-x-8

3 y= 7/3x or 2 1/3x

Step-by-step explanation:

1 -x=10y

divide -x and 10 by 10

2 y+8=-x

subtract 8

3 -4+7x+4=3y

divide everything by 3

6 0

3 years ago

A 9-yard roll of string costs $3.42. What is the unit price?

Karolina [17]

Answer:

$0.38 per yard

Step-by-step explanation:

Step 1:

Given; A 9-yard roll of string that costs $3.42.

Required; To find the unit price

Step 2:

Convert $3.42 to cents

$1 ~dollar=100~cents ~\\therefore,\\$3.42=3.42~x~100=342~cents~$

Step 3:

Find the unit price

$\frac{9 yard}{1 yard} =\frac{342 ~cents}{x~cents}$

$9x=342$

$\frac{9x}{9} =\frac{342}{9}$

$x=38~cents$

Convert to dollars

$x=\frac{38}{100}$

$x=0.38~per~yard$

Hence the unit price is $0.38 per yard.

5 0

2 years ago

If a factory can produce 800 newspaper in 15 minutes how many newspapers will it produce in 2 hours

Irina18 [472]

Answer:

it will produce 6400 newspapers

Step-by-step explanation:

800 x 8 = 6400

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3 years ago

F(x) = 2x - 6, find f(10).

siniylev [52]

Answer:

Step-by-step explanation:

use the given functions to set up and simplify f (10).

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3 years ago

What is X? Please help!

vodka [1.7K]

Answer:

Step-by-step explanation:

the sum of the angles in a triangle add up to equal 180

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3 years ago

Read 2 more answers