How might you eliminate the x-term from the top equation?
15x + 7y= 4
5x + 7y= 2
A. Subtract the bottom equation from the top equation.
B. Add the bottom equation to the top equation.
C. Multiply the bottom equation by two before subtracting it from the
top equation
D. Multiply the bottom equation by three before subtracting it from
the top equation.

D

Step-by-step explanation:

To eliminate x, you need to multiply by 3, then subtract.

Can't explain more! Simple as That!

Hope this helps!

P.S. Stay Safe!

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.