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
Diano4ka-milaya [45]
3 years ago
6

If x and y vary directly and x=25 when y=100 find x when y=24. PLEASE HELP FASTTTTTTT

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

x = 6

Step-by-step explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 25 when y = 100 , then

100 = 25k ( divide both sides by 25 )

4 = k

y = 4x ← equation of variation

When y = 24 , then

24 = 4x ( divide both sides by 4 )

6 = x

You might be interested in
(8y²)(-3x²y²)(2/3xy⁴)<br><br> HELP PLEASEEEEEEEE
IRINA_888 [86]

Step-by-step explanation:

1 Remove parentheses.

8{y}^{2}\times -3{x}^{2}{y}^{2}\times \frac{2}{3}x{y}^{4}

8y

2

×−3x

2

y

2

×

3

2

xy

4

2 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}

b

a

×

d

c

=

bd

ac

.

\frac{8{y}^{2}\times -3{x}^{2}{y}^{2}\times 2x{y}^{4}}{3}

3

8y

2

×−3x

2

y

2

×2xy

4

3 Take out the constants.

\frac{(8\times -3\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

3

(8×−3×2)y

2

y

2

y

4

x

2

x

4 Simplify 8\times -38×−3 to -24−24.

\frac{(-24\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

3

(−24×2)y

2

y

2

y

4

x

2

x

5 Simplify -24\times 2−24×2 to -48−48.

\frac{-48{y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

3

−48y

2

y

2

y

4

x

2

x

6 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

a

x

b

=x

a+b

.

\frac{-48{y}^{2+2+4}{x}^{2+1}}{3}

3

−48y

2+2+4

x

2+1

7 Simplify 2+22+2 to 44.

\frac{-48{y}^{4+4}{x}^{2+1}}{3}

3

−48y

4+4

x

2+1

8 Simplify 4+44+4 to 88.

\frac{-48{y}^{8}{x}^{2+1}}{3}

3

−48y

8

x

2+1

9 Simplify 2+12+1 to 33.

\frac{-48{y}^{8}{x}^{3}}{3}

3

−48y

8

x

3

10 Move the negative sign to the left.

-\frac{48{y}^{8}{x}^{3}}{3}

−

3

48y

8

x

3

11 Simplify \frac{48{y}^{8}{x}^{3}}{3}

3

48y

8

x

3

to 16{y}^{8}{x}^{3}16y

8

x

3

.

-16{y}^{8}{x}^{3}

−16y

8

x

3

Done

6 0
2 years ago
Karita had $138.72 in her checking account. She wrote checks for $45.23 and $18.00. Then she made a deposit of $75.85 into her a
denis-greek [22]
138.72 - 45.23 - 18
These are the check costs that subtracted from her bank account
75.49 is what you get
A deposit is when you add money to your account, so, you add 75.85
75.49 + 75.85 = $151.34
3 0
3 years ago
Read 2 more answers
There are 15 girls and 25 boys in a science club what percent of the members were girls
otez555 [7]
   15      /      40             =    .375
total #      total #
of girls      of students

.375 = 37.5%

15/40 as a fraction ---> simplify ---> 3/8
3 0
3 years ago
What is: Y+ 4x= 4 Y= -4x + 2
Tom [10]
The answer to this + 2
6 0
2 years ago
5x+2y=-10<br> -3x - 2y=6<br> Solve by elimination I’m confused
Firdavs [7]
The answer is
x=-2 y=0
5 0
3 years ago
Other questions:
  • Describe any clusters of data from the scatter plot
    15·1 answer
  • Find the median for the given set of data.5/8,3/4,1 1/8,1 1/4
    7·1 answer
  • Which argument is valid?
    6·1 answer
  • Ruby weighs 88 lbs. Her weight is 12 lbs. less than half her mother's weight. How much does her mother weigh?
    12·2 answers
  • I Hope That This Ain't A Fairytale
    9·1 answer
  • Jason's checkbook had a balance of $525.02 on May 5 . On May 6 , he wrote a check for $107.65 at the grocery store . On May 8 ,
    12·2 answers
  • Use the distributive property to write an equivalent expression. 8(10p + 6q - 1)​
    14·1 answer
  • Please help it timed
    13·1 answer
  • What’s (2^2+8)x7 please help
    15·1 answer
  • 1)The sum of two numbers is 43, and their differences is 7. Find the smaller number.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!