C , i dont know if it’s right but it’s the only table with the same number on the bottom . and same number in general
2.40
5.40-2.40= 3 (price of 2 sodas)
8.70 - 7.20 = 1.5 (price of 1 soda)
The soda prices match up so a hamburger is 2.40
Answer:
Sam can do the job in 20 min. So he can do the whole job at the rate of 1 job in 20 minutes.
So he does 1/20 of the job per minute.
.
Rob can do the job in 30 min. His rate is 1/30 of the job per minute.
.
Working together how does it take?
.
1/20*x + 1/30*x = 1 job done
, where x = minutes.
.
Step-by-step explanation:
Actually it is A they are multiplying each number on the left side by four to get the answer which is on the right side therefor 9 x 4 = 36.
Answer:
x=-1, y=4. (-1, 4).
Step-by-step explanation:
x+y=3
8x+y=-4
--------------
y=3-x
8x+(3-x)=-4
8x+3-x=-4
7x+3=-4
7x=-4-3
7x=-7
x=-7/7=-1
-1+y=3
y=3-(-1)=3+1=4
x=-1, y=4. (-1, 4).
