Answer:
10ibs=1000% 6ibs=600%
Step-by-step explanation:
Create a system of equations
x + y = 123
5x + y = 343
I use substitution
y = 123 - x
5x + 123 - x = 343
4x + 123 = 343
4x = 220
x = 55
Plug in
x + y = 123
55 + y = 123
y = 68
Check
5x + y = 343
5(55) + 68 = 343
275 + 68 = 343
343 = 343
20+7 + 30+3 is that what you meAN
Answer:for number one its q and r and then its w,x,y for the second one
Step-by-step explanation:
hope its helps
Answer:
21
Step-by-step explanation:
I dunno, I used a calculator B)