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Alja [10]
3 years ago
7

Can someone teach me how to solve this please

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0
Multiply it all together
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A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?
lara [203]

Answer:

y=7x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

k=y/x                      

For (2,14) ----> k=14/2=7

For (4,28) ----> k=28/4=7

so                              

the value of k=7            

therefore                                          

The equation  is                                                    

y=7x                

3 0
3 years ago
Read 2 more answers
Rewrite 5a-(a-3b) in standard form
slamgirl [31]
So, -(a-3b) becomes -1(a-3b). Then, this becomes 5a-1a+3b. There is +3b because there is a double negative. So, 5-1=4, so your answer is 4a+3b. Pls brainliest
3 0
2 years ago
What is the answer to question b and d
kogti [31]

Answer:

Step-by-step explanation:

a) -3

b) 5

c) -2

d) -6

8 0
2 years ago
Read 2 more answers
Can somebody help me with that? Thank:)
Helga [31]
The sum of the angles in a triangle is 180, so the equation will be :
2k+k+45= 180
add similar variables
3k+45=180
3k=135 (divide each side by 3)
k= 45
So 2k equals= 90
k=25
This is right angle triangle for your info!
3 0
2 years ago
Are the ratios of 2 apples to 5 oranges and 6 apples to 14
kramer

Answer:

No

Step-by-step explanation:

Multiplying the 2 and the 5 by 3 will get you 6 and 14. 14 is not a factor of 5 making it incorrect.

3 0
2 years ago
Read 2 more answers
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