Answer:
-5
Step-by-step explanation:
Answer:
K=42
Step-by-step explanation:
If this is correct pls mark me brainliest I only need 2 more until I can level up
Answer:
x=3 y=5/2
Step-by-step explanation:
1. 0.5x + y =4
2. 0.5x-y=-1
subtract the 2nd equation from the 1st
0.5x cancels out
2y = 5
y = 5/2
subs y = 5/2 into any one of the equations to find x
0.5x + 5/2 = 4
x = 3
subs to see if right:
(0.5 x 3) +5/2 = 4
(0.5 x 3) -5/2 = -1
Answer:
2 1/7 kg
Step-by-step explanation:
Multiply 5/7 kg by 3, obtaining 15/7 kg, or 2 1/7 kg