Answer:
40 lbs was used
Step-by-step explanation:
If there is 20% left, that means 80% was used
50 *80%
Change to decimal form
50 *.80
40
40 lbs was used
Just multiply Base x Height and you'll get your answer
Answer:
-3/5
Step-by-step explanation:
slope is y2 - y1 / x2 - x1
so 1-4/9-4
which equals -3/5
First of all,find the volume of prism by using the formulae V=1/3Ah.Then,find the volume of cuboid by using length × breadth × height.After that,you can find the answer. The answer is a.