<span>The workers paved 2/5 miles in 1 hour =)</span>
The third one is the answer?
Answer:
the answer is 1,0,0,1
Step-by-step explanation:
e1=1
e2=0
e3=0
e4=1
x=-3
No, because their product is not equal to the identity matrix.
Answer:
50 days are needed to make $2500.
Step-by-step explanation:
Number of tons per day:
One ton equals 2000 pounds, as the problem states as a hint.
The company collects 200 pounds per day.
1 ton - 2000 pounds
x tons - 200 pounds
2000x = 200
x = 200/2000
x = 0.1
0.1 tons per day.
A recycling company makes $500 per ton of aluminum scrap collected.
0.1*500 = $50 per day.
How many days are needed to make $2500?
1 day - $50
x days - $2500
50x = 2500
x = 250/5
x = 50
50 days are needed to make $2500.