2 years ago

Find the value of y so that the points (-2,5) and (8y) lie on a line with the slope -1/5

Mathematics

1 answer:

stiv31 [10]2 years ago

7 0

Answer:

y = 3

Step-by-step explanation:

Use the slope formula:

y2 - y1

m = ------------- , which here becomes

x2 - x1

y - 5 -1

m = ------------- = -----

8 - (-2) 5

Solve this for x. Cross multiplication yields:

5y - 25 = -1(10) = -10

Then 5y = 15, and y = 3

You might be interested in

A frustum is made by removing a small cone from

irina1246 [14]

Answer:

a similar large cone

Step-by-step explanation:

7 0

1 year ago

A grocer mixes peanuts that cost $1.41 per pound and walnuts that cost $2.61 per pound to make 100 pounds of a mixture that cost

BigorU [14]

w = 60 lb (amt. of walnuts needed)

100-w = 40 lb (amt. of peanuts needed)

7 0

2 years ago

What is the difference? complete the equation -30 - (-10) =

sergejj [24]

-40

Mark brainliest please

Hope this helps you

3 0

2 years ago

Read 2 more answers

What is 1/4+2/3 equal

Alexxandr [17]

Answer:

0.91666666666

Step-by-step explanation:

1/4 + 2/3 = 0.91666666666

3 0

2 years ago

Read 2 more answers

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.

grigory [225]

Answer: $x=5(13-12p)$

Step-by-step explanation:

Given equation: $x=65-60p$

$\\\Rightarrowx=(5\times13)-(5\times12)p$

Since 5 is the greatest common factor of 65 and 60 in the given expression.

Therefore, the above expression can be written as

$x=5(13-12p)$

Hence, by factoring the side that contains the variable p we have the expression $x=5(13-12p)$ .

7 0

2 years ago

Find the value of y so that the points (-2,5) and (8y) lie on a line with the slope -1/5​

Find the value of y so that the points (-2,5) and (8y) lie on a line with the slope -1/5