which of the ordered pairs, (5,5), ( 3,15), and (3,2) are solutions for the equation 5x+y=30?

Question

A. ( 5,5), ( 3,15)
B. (3,2), ( 3,15)
C. ( 3,15)
D. ( 5,5), ( 3,2)
Which one is the right answer

Answer 1

A
You plug the values into the equation like so:

5(5) + 5 = 30 .... 25+5=30.... True, so (5,5) is a solution

5(3)+15=30... 15+15=30... True, so (3,15) is also a solution

5(3) + 2 = 30... 15+2=30... Not True, so (3,2) is not a solution

Answer 2

you should only substitute both of the pairs for the values of x and y... try it so you could learn...

but if you want the answer, it should be a. (5,5) and (3,15) and then it would look like this:

5(5)+5=30
5(3)+15=30

Answer 3

A
Ordered pairs are written (x,y) so substitute the values & work the equation.
5x+y =30
(5*5) + 5 = 30

Try it w/ (3,15).

Answer 4

A.