Answer:
A
Step-by-step explanation:
N=8+d
10d+5n=145
divide 2nd equaiton by 5 to make nicer and easier
2d+n=29
subsitute 8+d for n in 2nd equation
2d+8+d=29
3d+8=29
minus 8 both sides
3d=21
divide by 3
d=7
sub back
n=8+d
n=8+7
n=15
15 nickles and 7 dimes
Answer:
240
Step-by-step explanation:
lets see
if we sell 100 cups of lemonade that would make 200 dollars NOT ENOUGH
if we sell 100 cups of orange juice that would make 300 TOO MUCH
meaning we have the find the right one
lets say if we sell 80 lemonade cups we would make 160 then have 20 orange juice which would make 60 and 160+60= 220 so not enough either
this means we can't have as much lemonade
lets try 75 cups of lemonade
lets say if we sell 50 lemonade cups we would make 100 then have 50 orange juice which would make 150 and 150+100= 250 so too much
lets try 55 cups of lemonade
lets say if we sell 55 lemonade cups we would make 110 then have 45 orange juice which would make 135 and 110+135= 145
sooo close
try 60
60*2-120 40*3-120
120*120= 240
Step-by-step explanation:
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