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ivolga24 [154]
3 years ago
9

How is -5x + 2y = 9 is not constant of variation

Mathematics
2 answers:
nadya68 [22]3 years ago
7 0
A constant of variation is only in the form ay=bx where b/a=constant so given any point y/x=constant let us check here by substituting x=1 and x=2
when x=1---> 2y=14,y=7 here y/x=7
when x=2--->2y=19,y=9.5 here y/x=4.75
so this equation is not constant of variation
let us check an equation of the form 3y=7x
when x=1--->y=7/3--->y/x=7/3
when x=2--->y=14/3---->y/x=7/3
so 3y=7x is a constant of variation
sukhopar [10]3 years ago
4 0
Yes because there is no constant
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dlinn [17]
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8 0
3 years ago
Simplify the expression
NeTakaya

First, solve the parenthesis

Remember to follow PEMDAS, and the left-> right rule

12/3 = 4

4 x 2 = 8

8 + 3 = 11

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16 is your answer

hope this helps

7 0
3 years ago
Help plz<br> I am so confused
ankoles [38]

The answer to number 18 is -  0.25 or 1/4


If you need help with the other ones ask.


<em>Hope this will help :)</em>

8 0
3 years ago
Please anyone answer this for me?
vlabodo [156]
Im not sure but

(sarah + tara)/2 = 8

(20 + tara)/2 = 8

20 + tara = 16

tara = 4hours ?? it doesn’t make logical sense but this is the only way i can think of

sorry if this wasn’t helpful ;-;
7 0
3 years ago
4/5 ÷ 2/3 i'm small brain so I have no clue ;w;
Ad libitum [116K]

Answer:

Exact Form : 6/5

Decimal Form : 1.2

Mixed Nuumber Form ; 1 1/5

3 0
3 years ago
Read 2 more answers
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