Mathematics, 29.03.2020 02:14 maxi12312345

If you are able to do 5 pull ups now and after 4 weeks you are able to do 9 pulls ups. Write an equation that represents the number of pull ups "y" you can do after "x" weeks.

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Answer from: itsme123427

The equation that that represents number of pull ups 'y' i can do after 'x' weeks is y=5+x .

Step-by-step explanation:

Given:

Number of pull ups at the beginning = 5

Number of pull ups after 4 weeks = 9

We need to write the equation for number of pull ups 'y' i can do after 'x' weeks.

Solution:

Now we will find the number of pull ups increased in 4 weeks.

number of pull ups increased in 4 weeks can be calculated by Number of pull ups after 4 weeks minus Number of pull ups at the beginning.

framing in equation form we get;

number of pull ups increased in 4 weeks = 9-5=4

So we can see that;

in 4 weeks = 4 pulls increase

in 1 week = Number of pull ups able to do in 1 week.

By using Unitary method we get;

Number of pull ups able to do in 1 week = $\frac{4}{4}=1$

Now we can say that;

Let the number of pull ups you can do 'y' .

Let he number of weeks be 'x' .

So we can say that;

number of pull ups you can do after 'x' weeks is equal to Number of pull ups at the beginning plus Number of pull ups able to do in 1 week multiplied by number of weeks.

framing in equation form we get;

y=5+x

Hence The equation that that represents number of pull ups 'y' i can do after 'x' weeks is y=5+x .

Answer from: Quest

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

Answer from: Quest

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

$ab^2+ac^2=bc^2$

$ab^2+ac^2=x^2$ )

triangle abd and cba are similar,

$\frac{ab}{bc}=\frac{bd}{ab}$

$ab^2=bc\cdot bd$

$25=bc\cdot bd$ (2)

triangle cad and cba are similar,

$\frac{ac}{bc}=\frac{cd}{ac}$

$ac^2=bc\cdot dc$

$7\times 7=bc\cdot dc$

$49=bc\cdot dc$ )

using (1), (2) and (3), we get

$25+49=x^2$

$74=x^2$

hence proved.

therefore option 2 is correct.

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If you are able to do 5 pull ups now and after 4 weeks you are able to do 9 pulls ups. Write an equa...