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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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olga nikolaevna [1]

The thing that's wrong with the equation is that 2 shouldn't be multiplied by 4 but should have been added.

<h3>How to illustrate the information?</h3>

From the information given, it can be seen that the equation is:

(3x²)(-2x⁴) = 3(-2)x² × x⁴ = 6x^8

Based on the information above, this calculation is incorrect. The correct calculation will be:

(3x²)(-2x⁴) = 3(-2)x² × x⁴

= -6x^6

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2 years ago
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choli [55]

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Step-by-step explanation:

8 0
3 years ago
45 cm<br> 60 om<br> What is the length of the hypotenuse?<br> centimeters?
ExtremeBDS [4]

Answer:

Answer:

Length of leg of triangle =  

Step-by-step explanation:

We are given a 45°-45°-90° triangle with hypotenuse measuring 18 cm.

Let us assume the following labeling of the diagram, as attached in the answer area.

The two angles here are equal to 45° so two sides of the triangle opposite to the equal angles will also be equal to each other i.e. it is an isosceles triangle.

i.e. The sides XY and YZ will be equal.

Let XY = YZ = x cm

It is known that in a right angled triangle, pythagorean theorem holds well.

As per pythagoream theorem:

Putting the values:

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help please i will give brainliest
valina [46]
Plan B is the answer I’m pretty sure
5 0
3 years ago
8/15 divided by 1/3 reduce your answer
klio [65]
Here we can use fact than we can multiply fraction by inverse of fraction instead of dividing it.
Inverse of 1/3 is 3/1
Lets multiply it
\frac{8}{15}* \frac{3}{1}= \frac{24}{15}= \frac{24:3}{15:3}= \frac{8}{5}=1 \frac{3}{5} - its our result
7 0
3 years ago
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