Answer:
2/10 or 0.2
i dont know which tenths you wanted so i did both
Answer:
20 sets
Step-by-step explanation:
320/16=20
He needs 320 ping pong balls, and he has 16, so divide the amount needed by the amount that comes in each containter.
Answer:
4 cm, if you subtract 9 from 13 you get four.
The product of 5 and n is written as 
.
Two less than this product is 
Answer:
502 m²
Step-by-step explanation:
We require to find b before calculating the surface area.
The volume (V) of a cuboid is calculated as
V = lbh ( l is length, b is breadth and h is height )
Here V = 510, l = b, b = 10 and h = 3, thus
b × 10 × 3 = 510
30b = 510 ( divide both sides by 30 )
b = 17
--------------------------
The opposite faces of a cuboid are congruent, thus
top/bottom area = 2(17 × 10) = 2 × 170 = 340 m²
front/back area = 2(17 × 3) = 2 × 51 = 102 m²
sides area = 2(10 × 3) = 2 × 30 = 60 m²
Surface area = 340 + 102 + 60 = 502 m²
