Let a = weight of large box in pounds
Let b = weight of small box in pounds
(1) 65a + 70b=4000
(2) a+b=60
Now we can simultaneously solve these equations.
a = 60 - b. Hence 65(60 - b) + 70b = 4000 So 3900 + 5b = 4000 and 100 = 5b hence b = 20.
SImilarly a = 40. Now we can verify too by putting in the calculated values.
Answer:
JUST DOING THIS FOR POINTS
Step-by-step explanation:
LOL
Answer:
A
Step-by-step explanation:
I think its self explanatory?
2+1=3 cups of water?
Answer:
True
Step-by-step explanation:
X+11=18
subtract 11 from both sides
18-11=7
x=7
