SOLUTION: I AM A GRANDFATHER TRYING TO HELP MY GRANDSON WITH ALGEBRA 1A. I HAVE SEVERAL PROBLEMS I NEED ASSISTANCE WITH. PLEASE BE PATIENT, I HAVENT DONE THIS IN A WHILE. THE QUESTION IS THI

Question 1204866: I AM A GRANDFATHER TRYING TO HELP MY GRANDSON WITH ALGEBRA 1A. I HAVE SEVERAL PROBLEMS I NEED ASSISTANCE WITH. PLEASE BE PATIENT, I HAVENT DONE THIS IN A WHILE. THE QUESTION IS THIS Y= THE NUMBER OF 2 MM BLOCKS(Y) NEEDED FOR ANY NUMBER OF 4MM BLOCKS(X).
4MM BLOCKS ARE 0,6,7,X . 2MM BLOCKS ARE 18-2(0), 18-2(6), 18-2(7), AND ?. PLEASE SHOW WHAT TO DO .
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

the number of blocks () needed for any number of blocks ()
relationship is linear

use given values for and to find and
given:
|
|
|
|
|?

use two points to find a slope : (,) and (,)

since we have (,), means -intercept is ,and your equation is:

so, when value of 4mm blocks is unknown (as you can see from given data, it is ), then 2mm blocks will be
so answer is: 18-2(x)
4mm blocks are: ,,,
2mm blocks are: , , ,

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