All categories

3 years ago

If y varies directly as x and y = 11 when x = 2.5, find y when x = 27.5.

Mathematics

2 answers:

Rashid [163]3 years ago

6 0

Answer:

121

Step-by-step explanation:

you can either set up a proportion or a table (i inserted a picture for both ways!) After setting up a table you would calculate how much it is to get from 2.5 to 27.5 (so you divide 27.5/2.5) to get 11. Then you move to the y side of the table where you would have to multiply 11×11 to get your answer (which is 121)

Lera25 [3.4K]3 years ago

5 0

Answer:

27.5

Step-by-step explanation:

y=consx

y=x

y=27.5

You might be interested in

A rectangle has a length of x+5 cm and a width of x cm. The perimeter of the rectangle is 50 cm. What is the value of x?

larisa86 [58]

Answer:x=10

Step-by-step explanation:

First let's create an equation:

2(x+5)+2x=50

2x+10+2x=50

4x+10=50

4x=40

x=10

4 0

3 years ago

Read 2 more answers

The following gambling game has been proposed, which a player must pay to play. First, a value U is chosen uniformly from the se

Vesna [10]

Answer:

The player should be required to pay $5 to make this a fair game.

Step-by-step explanation:

U ~ Uniform(0, 10)

E[U] = (0 + 10)/2

= 5

X | U ~ Poisson(U)

E[X | U] = U

By law of total probability for expectations,

E[X] = E[E[X|U]] = E[U] = $5

Therefore the player should be required to pay $5 to make this a fair game.

6 0

3 years ago

Mr and mrs. Dorsey and their three children are fling to Springfield. The cost of each ticket is $179. Estimate how much the tic

Soloha48 [4]

First figure out how many people there are all together. So mrs and mr is 2 there three children so 2+3=5 so next round 179 to 200 and multiply 200x5. To do that you can use the mental math way witch would be to take the whole number out of 200 and make it 2. Then take the 5 in 200x5 and multiply 2x5. Then add the 2 zeros there were. And your estamated answer would be 1,000.
2+3=5
179=200
200x5
2x5=10
1,000
To figure out your real answer you will have to take 179 and multiply it by 5 so it will look like this:
34
179
x
5
895
Soto conculde the answer would be:

Estamated: $1,000

Exact: $895

Hope this helps!

7 0

3 years ago

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. The right triangular prism has a heigh

expeople1 [14]

Answer:

The correct answer is:

The volume of the triangular prism is equal to the volume of the cylinder

Step-by-step explanation:

Given that there are two figures

1. A right triangular prism and

2. Right cylinder

Area of cross section of prism is equal to Area of cross section of cylinder.