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3 years ago

If y varies jointly with x and y=5 when x=15 and z=24 find y when x=6 and z=14

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

5 0

Answer:

if they vary together then y would be 2

Step-by-step explanation:

since they vary together 5 multiplied by 3 is 15 so you would divide 6 by 3 to get 2 the z is irrelevant because it has no relation to x or y

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3 years ago

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1 year ago

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emmainna [20.7K]

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3 years ago

what is the slop of the like that passes through the points (4,7) and (5,8)? write your answer in simplistic form

Paladinen [302]

Answer:

slope=1

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3 years ago

Solve the system of linear equations by graphing. y = –5/2 x – 7 x + 2y = 4 What is the solution to the system of linear equatio

Anestetic [448]

Keywords

system; linear equations; graphing; solution

we have

$y=-\frac{5}{2}x-7$ -------> equation A

$x+2y=4$

$x=4-2y$ ----> equation B

The system of linear equations is composed of equation A and equation B

Substitute the equation B in equation A

$y=-\frac{5}{2}[4-2y]-7$

$y=-10+5y-7$

$4y=17$

$y=17/4=4.25$

Find the value of x

$x=4-2[17/4]=-4.5$

The solution is the point $(-4.5,4.25)$

Using a graphing tool

see the attached figure

therefore

the answer is the option A

$(-4.5,4.25)$

4 0

3 years ago

Read 2 more answers