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3 years ago

How would you find the missing x and y values if you don’t have a model or equation to go by?

Mathematics

1 answer:

mamaluj [8]3 years ago

3 0

You can find the slope and y-intercept, and make an equation in slope- intercept form and them just plug in the other x values in the equation.

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Can you help i need to finish this by today!

lubasha [3.4K]

Distance = speed x time
2.257 x 9.111 = 20.563527 or 20

4 0

3 years ago

John is twice as old as his son. In 42 years, the ratio of their ages will be 4:3. What is the son's current age?

dsp73

Answer: Jhon is 42 years old, and his son is 21 years old.

Step-by-step explanation:

Let's define:

J = John's age

S = Age of the son.

We know that:

"John is twice as old as his son"

J = 2*S

"In 42 years, the ratio of their ages will be 4:3. What is the son's current age?"

In 42, their ages will be:

J + 42 and S + 42.

And the ratio 4:3 means that:

(J + 42) = (4/3)*(S + 42)

Then we have the system of equations:

J = 2*S

(J + 42) = (4/3)*(S + 42)

To solve it we can first replace the first equation into the second one, to get:

(2*S + 42) = (4/3)*(S + 42)

2*S - (4/3)*S = (4/3)*42 - 42

S*(6/3 - 4/3) = (1/3)*42

S*(2/3) = (1/3)*42

S = (3/2)*(1/3)*42 = 21.

And we can find Jonh's age if we use the first equation:

J = 2*S = 2*21 = 42

Jhon is 42 years old, and his son is 21 years old.

8 0

3 years ago

Yall please help!!!!!! THANK YOUUU SO MUCHHH!!! Kinda lostttt

Georgia [21]

Answer:

Should be C

Step-by-step explanation:

Only the same power number can be use to add or subtract :)

But why is A, B and C same kinda stuff?

3 0

1 year ago

(2,-4) and (6,2).<br> Find the mid point

Olin [163]

Answer:

The answer is

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

$M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(2,-4) and (6,2)

The midpoint is

$M = ( \frac{2 + 6}{ 2} , \: \frac{ - 4 + 2}{2} ) \\ = ( \frac{8}{2} \: , \: - \frac{2}{2} )$

We have the final answer as

Hope this helps you

6 0

3 years ago

Read 2 more answers

Jane cycled 32km, correct to the nearest km.

o-na [289]

Answer:

31.5

and

32,4

Step-by-step explanation:

4 0

3 years ago