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Anettt [7]
3 years ago
11

Two quantities, x and y, are directly proportional. If x is doubled, what happens to y?

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
7 0

Answer:

y is also doubled.

Step-by-step explanation:

Direct proportionality between x and y means that

y \propto x

or

y=cx,

which indicates a linear relationship between  x and y because they are related by a constant.

Therefore, if x is doubled, then the new value of y is y_{new}

y_{new}=c(2x)

y_{new}=2(cx)

y_{new}=2y

The new value of y is 2 times the previous; therefore, y is doubled as x is doubled.

zzz [600]3 years ago
5 0

Answer:

It is doubled.

Step-by-step explanation:

Two quantities, x and y, are directly proportional. If x is doubled, what happens to y?

It is doubled.

I got it correct I took a screen shot I got it right.

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Help!!! will give brainly if u help me! btw photo is attached
OLEGan [10]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Find the number of permutations of the first 8 letters of the alphabet taking 5 letters at a time?!
Musya8 [376]

The first letter can be any one of 8.  For each of those . . .
The second letter can be any one of the remaining 7.  For each of those . . .
The third letter can be any one of the remaining 6.  For each of those . . .
The fourth letter can be any one of the remaining 5.  For each of those . . .
The fifth letter can be any one of the remaining 4.

The total number of possibilities is  (8 x 7 x 6 x 5 x 4) = <em>6,720</em> .
(That's  8! / 3! .)

Note:
If you're allowed to use the same letter more than once,
then there are 8 choices for each of the 5 letters.
The total number of possibilities then is              (8 x 8 x 8 x 8 x 8) = 32,768 .
(That's 8⁵  or  2¹⁵ .)



5 0
3 years ago
Which of the following equations correctly shows the relationship between the values of x and the values of y?
Firdavs [7]
Every time the x goes up 1 the y goes up by 3
6 0
3 years ago
Read 2 more answers
You are buying carpet to cover a room that measures 42 ft by 42 ft. The carpet cost $ 25 per square yard. How much will the carp
antiseptic1488 [7]

Ok so, 42 ft. by 42 ft.

$25 per square yard

1 square yard = 9 square feet

The total square footage is 1,764 ft.

Total square yards is 196.

The total cost would be $4,900.

3 0
2 years ago
I need help again. once again due TM helppp
vekshin1
Since the object is a cube, times 42 three times by itself. You have to do this because it is length x width x height. 42 x 42 x 42. The answer you're looking for is 74,088 cubic inches because it is three-dimensional.
3 0
3 years ago
Read 2 more answers
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