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Mkey [24]
2 years ago
7

Given a line with a slope of -1/5, what is the slope of any lines that lies perpendicular to it?

Mathematics
1 answer:
natka813 [3]2 years ago
3 0
The answer is 5

If two slopes are perpendicular to one another, their product will be -1.
This can be shown as;
(-1/5) * x = -1
x = (-1)/(-1/5)
x = 5
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On Sunday, a local hamburger shop sold a combined of 572 hamburger and cheeseburger. The number of cheeseburgers sold was three
igor_vitrenko [27]
Answer: 143 hamburgers and 429 cheese burgers

Explanation:

Call h and c the number of both items.
(h-hamburger and c-cheeseburger)

h + c = 572
c = 3h

Sub the second into the first

h + 3h = 572
4h = 572

Divide both sides by 4
h = 143 hamburgers

Use this back into the second equation
c = 3 • 143 = 429 cheeseburgers

3 0
3 years ago
Find the constant of proportionality (k). Using the value for k, enter an equation in the form of y = kx.
kow [346]

Answer:

k = 4, y = 4x

Step-by-step explanation:

From the question, we get the ratio of :

x : y = 1 : 4

Two variables are proportional to each other if their ration is constant. The constant value is denoted by 'k' and is called as constant of proportionality.

In the question, the two variables are :

x = glasses of lemonade

y = lemons used

From the question, the ratio of y is to x is given by :

y : x is   24 : 6 = 4 : 1     or   24/6 = 4

            32 : 8 = 4 : 1     or   32/8 = 4

            28 : 7 = 4 : 1     or   28/7 = 4

             8 : 2 = 4 : 1      or   8/2 = 4

            16 : 4 = 4 : 1     or   16/4 = 4

So here the constant is 4 . Therefore, the constant of proportionality, k is 4.

So we can write the equation as :

y = kx

or y = 4x

7 0
2 years ago
Price Rite has ground beef on sale for $2.50 for 1 pound. Market Basket has ground beef on sale for $9.95 for 5 pounds. Which st
Feliz [49]
Divide the second price by the second pounds. 9.95 / 5 = 1.99
So for every pound you get you pay 1.99 dollars. The second deal is better.
6 0
3 years ago
An open box with a square base is to be constructed from 84 square inches of material. The height of the box is 2 inches. What a
riadik2000 [5.3K]
Your surface area is: S=x^2+4xh=84 square inches and h=2 inches; so you get:
x^2+(4×2)x=84
x^2+8x-84=0 qhich is a quadratic equation. Using the quadratic formula you get two results for x:
x1=-14 and x2=6
choose the second (positive)
6 0
3 years ago
Solve x^3+9x^2-52x*<br> -13, 0, 4<br> 0, 4, 13<br> -13, -4, 0<br> 1, 2, 3
loris [4]

Answer

It would be 1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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