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-max [94.6K]
3 years ago
10

Given that y and x are directly proportional and y=22 when x=6, find the value of y when x=15.

Mathematics
1 answer:
aev [14]3 years ago
6 0

Answer:

y = 55

Step-by-step explanation:

Hi,    

Remember: if y and x are directly proportional, you could write a ratio with those values, as follows:

y:x becomes 22:6

You can write an equation with the new value:  

y:15 = 22:6

Now solve by cross multiplication. Imagine that those ratios are fractions:

y/15 = 22/6

y*6=15*22

6y=330

y=55

The value of y is 55 when x is 15.

You might be interested in
Value of the underlined of 56
Elodia [21]
Anyway, the value of 5 is 50 and the value of 6 is 6 as in the ones place.
5 0
3 years ago
Read 2 more answers
A cylindrical swimming pool has a diameter of 20 feet and a height of 3.5 feet. How many gallons of water can the pool contain?
kvasek [131]

Answer:

The swimming pool will contain approx 8243\ gal of water.

Step-by-step explanation:

Given the swimming pool is in a cylindrical shape.

And the dimensions are 20\ feet diameter with a height of 3.5\ feet.

Also, 1\ ft^3 =7.5\ gal

First, we will find the volume of the swimming pool.

The swimming pool is in cylindrical shape.

So, the volume would be \pi r^2h

The height (h) is given as 3.5\ feet. To calculate radius (r) we will divide the diameter by two.

The radius of the cylinder would be \frac{20}{2}=10\ feet

Plug these values in the formula we get,

\pi r^2h\\=\pi\times 10^2\times 3.5\\=3.14\times 100\times 3.5\\=1099\ ft^3

Now, it is given 1\ ft^3 =7.5\ gal

So, 1099\ ft^3 =1099\times 7.5\ gal=8242.5\ gal

The swimming pool will contain approx 8243\ gal of water.

6 0
3 years ago
Solve the simultaneous equation 3x²-xy=0, 2y-5x=1​
White raven [17]

Answer:

exact Form:(0,),(1,3)

Equation Form: ( 0, )

             x=1         y=3

Step-by-step explanation:

6 0
3 years ago
What's 2 and 5/10 in standard decimal form
Evgesh-ka [11]
2 5/10 = 2 1/2 = 2.5
4 0
3 years ago
Use Pythagorean Theorem to solve for the
babymother [125]
Pythagorean theorem is all about squaring the numbers. the equation is a^2+b^2=c^2
when you know two sides of the triangle, you fill in those spaces. they hypotenuse is ALWAYS ‘c’

to figure this problem out you put
a as 4
keep b as b since you don’t know what it is
c as 6

4 squared=16
6 squared=36

16+b^2=36
36-16=20
square root of 20 is 4.47
6 0
3 years ago
Other questions:
  • Last Thursday ​, a parking lot had 80 cars. Of those 80 ​cars, 20 ​% were brown ​, 28 were white ​, and the rest were tan . What
    7·1 answer
  • Plz solve
    9·2 answers
  • Find the unit rate. Calvin scored 36 points in 6 games.
    14·1 answer
  • What's 2 1/3 ounces plus 4.5 ounces
    7·1 answer
  • Kendra placed the numbers: − 3/8, 0.27, −0.3, and 4/6 on the number line. Which of the numbers is furthest from zero? Group of a
    8·2 answers
  • HELP IM GOING TO HAVE A MENTAL BREAKDOWN
    13·1 answer
  • -7x=x² + 12
    6·1 answer
  • you have 1,000,000 number cubes, each measuring one inch on a side. if you arranged the cubes on the floor to make a square what
    14·1 answer
  • You have 30 quarters. You find ​20% more quarters in your room. Then you go shopping and spend ​75% of the total number of quart
    7·2 answers
  • Which problem can be solved by multiplying 10 times 5
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!