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
Svet_ta [14]
3 years ago
10

What is the direct variation between x and y when x=10 and y=250

Mathematics
1 answer:
ioda3 years ago
7 0

You can use equations to describe the relationship between the two numbers.

x+240=y

y-240=x


You might be interested in
Solve for n:<br> 3(2−8n)=3n+6<br><br> Select one:<br><br> -15<br><br> 5<br><br> -5<br><br> 0
Len [333]
N=0 bc you remove the parentheses, cancel the equal terms what would be 6 being cancel it would look like -24n=3n now and move the variable to the left collet like terms and then you will divide the sides. Your answer is 0
5 0
3 years ago
8.46 If 100 is decreased by a% and the result is decreased by b%, then what is the total percent decrease (in terms of a and b)?
Marysya12 [62]

Answer:

The total percent decrease is $a+b-\frac{a b}{100}$

Step-by-step explanation:

  • We are given with a word problem
  • We are asked to find the total percentage decrease
  • We can do this in two steps

         Step 1: Finding the two percentage decrease

         Step 2: Finding their difference

Step 1 of 2

Let the decrease by a% be 100-a

Then b% decrease is

$$\begin{aligned}\frac{b}{100} \times(100-a) &=\frac{100 b-a b}{100} \\\frac{100 b}{100}-\frac{a b}{100} &=b-\frac{a b}{100}\end{aligned}$$

Step 2 of 2

The percentage difference between the two percentages is,

$$\begin{aligned}&(100-a)-\left(b-\frac{a b}{100}\right)=100-a-b+\frac{a b}{100} \\&100-a-b+\frac{a b}{100}=100-\left(a+b-\frac{a b}{100}\right)\end{aligned}$$

Since 100 is the total percent $a+b-\frac{a b}{100}$ is the percentage decrease.

3 0
2 years ago
What is the surface area of an ice cream cone if the radius is 2 inches
PtichkaEL [24]
It goes 19 1 and 4ths to the area surface
5 0
2 years ago
Eva and emily can clean the entire house in 4 hours. Eva can do it by herself in 6 hours. How long would it take emily to do it
aksik [14]
Let x = the number of hours Eva needs to complete the job
and y = the number of hours Emily needs to complete the job

x = 6
1/x + 1/y = 1/4
(The amount of work Eva does in 1 hr + the amount of work Emily does in 1 hr should equal 1/4 of the total work)
1/6 + 1/y = 1/4
1/y = 1/12
y = 12 hours
Emily would take 12 hours to do it by herself.
6 0
3 years ago
WILL GIVE BRAINLIEST PLZ HURRY
Sedaia [141]
Answer is b.
Now we going to solve it
To find how many refills he bought
8.95 + 1.50(r) = 26.95
-8.95 = -8.95 1. subtract $8.95 from
———————————- both sides.
1.50(r) = 18.00 2. The $8.95 cancels
——— = ——— out.
1.50 1.50 3. Bring the equation
R = 12 down.
4. Now you divide 1.50
on both sides.
Final answer R= 12
6 0
3 years ago
Other questions:
  • True or false 398+9 = 400+8
    6·1 answer
  • Help...,..........please..............
    10·1 answer
  • There is 4/6 of a pizza left from dinner . Each person gets 1/6 of a pizza for lunch the next day . How many people eat the pizz
    5·1 answer
  • WILL MARK BRAINLIST<br><br> 10 to the power of 4 =
    14·2 answers
  • What is the value of x?​
    5·1 answer
  • The population of bacteria in a culture doubles every 14 hours. How long will it take for
    8·1 answer
  • Raportul a doua catete ale unui triunghi dreptunghic este de 3 supra 7,iar inaltimea este de 42cm.Aflati inaltimea,catetele,ipot
    12·1 answer
  • Make r the subject of t = 6r^2 + 6
    5·1 answer
  • On Monday, the coldest temperature outside was 2 degrees Fahrenheit. On Tuesday, Ms. Perkins tells her students that the coldest
    10·2 answers
  • HELP ASAP!! WILL GIVE BRAINLIEST!! ANSWER ALL PLEASE!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!