Answer:
The difference between the total and lateral surface areas of the room is 42 square yards.
Step-by-step explanation:
The lateral surface area of an object is the surface area of everything EXCEPT for the top and bottom of the object.
2(6*4.2) + 2(4.2*3.5) = 79.8 square yards
The total surface area of an object is everything INCLUDING the top and bottom of the object.
79.8 + 2(6*3.5) = 121.8 square yards
121.8 - 79.8 = 42 square yards
Answer:
-25=x
Step-by-step explanation:
20=10x-6(2x+5)
20=10x-12x-30
20=-2x-30
+30 +30
____________
50=-2x
÷-2 ÷-2
___________
-25=x
Hope this helps :D
Answer:
32 weeks.
Step-by-step explanation:
Let w represent number of weeks.
We have been given that the new plan will have the office recycling 1 kilogram of paper each week. So kilograms of paper recycled in w weeks would be
.
We are also told that Toby's office had already recycled 7 kilograms. So total kilogram of paper recycled in w weeks would be
.
Since Toby's office has to recycle a total of 39 kilograms of paper, so we will equate 39 with paper recycled in w weeks as:



Therefore, it will take 32 weeks for Toby's office to recycle a total of 39 kilograms of paper.
Answer:
T=21
Step-by-step explanation:
Sorry if wrong
I hope this helps