1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Salsk061 [2.6K]
3 years ago
15

Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y

when x = –2?
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0
Hello,

y=kx and if y=8 then x=-6
==>8=k*(-6)==>k=-4/3

if x=-2 then y=-4/3 * (-2)=8/3
You might be interested in
The value of a dirt bike decreases by 25% each year. If you purchased this dirt bike today for $500, to the nearest dollar how m
Harman [31]
First. Find out what 25% of 500 is,then minus that from 500 five times.

It wont be worth anything because it will be $-125 in 5 years.

500-125-125-125-125-125= -125
5 0
3 years ago
Read 2 more answers
Simplify by factoring. What are the excluded values? Choose all that apply.
makvit [3.9K]

Answer:

x = -2

x = 8

Step-by-step explanation:

Excluded values are the ones which make the denominator zero

3x² + x - 10

3x² + 6x - 5x - 10

3x(x + 2) - 5(x + 2)

(x + 2)(3x - 5)

x² - 6x - 16

x² - 8x + 2x - 16

x(x - 8) + 2(x - 8)

(x - 8)(x + 2)

[(x + 2)(3x - 5)] ÷ [(x - 8)(x + 2)]

(3x - 5)/(x - 8)

So excluded values are 8, -2

6 0
3 years ago
Sally bought some candy bars for $1.25 each and some sodas for $1.49 each. If she bought a total of 38 items and spent $50.38 ho
hammer [34]

Answer:

26 candy bars and 12 sodas

Step-by-step explanation:

This problem can be solved by a simple system of equations

I am going to call x the number of candy bars that Sally bought and y the number of sodas that Sally bought.

The fact that she bought 38 itens means the x + y = 38.

She spent $50.38. The value she spent is the sum of the number of candy bars multplied by the value of the candy bar and the number of sodas multiplied by value of a soda. So 1.25x + 1.49y = 50.38

So we have to solve the following system:

1)x + y = 38

2)1.25x + 1.49y = 50.38

From 1), we have that x = 38 - y. I am going to replace it in 2)

1.25(38-y) + 1.49y = 50.38

-1.25y + 1.49y = 50.38 - 47.5

0.24y = 2.88

y = 12.

Sally bought 12 sodas.

In 1: x = 38-y = 38-12 = 26

Sally bourght 26 candy bars

6 0
2 years ago
Read 2 more answers
A stocks value decreased the same amount each day for 4 days. If the total change in value was -2.5 what was the change each day
KIM [24]

Answer:

-0.625

Step-by-step explanation:

4 0
2 years ago
What is ( 3.1 x 10^5) ( 2.2 x 10^7) in scientific notation?
hjlf

Answer:

= 2.231 × 107

8 0
3 years ago
Other questions:
  • The distance it takes a car to come to a complete stop after the brakes are applied is related to the speed that the car is trav
    5·2 answers
  • I'm so confused please help!!!! ( It's not A )
    7·1 answer
  • If Segment PQ = 10 and Segment PR = 25, what is the length of Segment QR?
    8·1 answer
  • What is thisssssssssss plsssssssss help
    8·2 answers
  • HELPPPPPPPP PRE ALG !!!!!!! 20 POINTS!!!! HELP ASAPPPPPPP
    8·2 answers
  • What is the correct value for y?
    5·1 answer
  • 1 1/8 = g - 4 2/5, what does g equal?
    5·1 answer
  • Please look at the picture
    8·1 answer
  • PLease help me
    14·2 answers
  • evelyn invests $3200.00 in an account for 9 months at a 5% annual interest rate, what is evelyns total amount in her account at
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!