4. 1 kg because you will have to divide 4100 by 1000. Ps. 1 kg is equal to 1000 grams.
Since y=3x+15
sub 3x+15 for y in other equation
2x+3(3x+15)=1
2x+9x+45=1
minus 45
11x=-44
divide 11
x=-4
sub
y=3x+15
y=3(-4)+15
y=-12+15
y=3
(-4,3)
x+y=10
x+2y=14
x is common in both so u have to subtract the second one from 1st
x-x + y-2y = 10-14
-y = -4
y=4
which means bottle of water (y) = 4
and then substitute 4 in equation (x+y=10 or x+2y=10)
x + 4 = 10
x=6
I'm not really sure because I have not done this in a while but I think True
Step-by-step explanation:
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Answer:
the last one
Step-by-step explanation: