Answer:
deer
Step-by-step explanation:
it is purul of deer
Well i think you mean to simplify 42/70 which is:
(2 * 3 * 7) / (2 * 5 * 7)
= ((2 * 3 * 7) : (2 * 7)) / ((2 * 5 * 7) : (2 * 7))
= (42 : 14) / (70 : 14) = 3 / 5
Young boy would have 15-7 = 8 bodyguards left
Answer:
There are 21 skateboards and bicycles in the shop.
A bicycle has two wheels, and a skateboard has four wheels
54 new wheels are needed
Number of bicycles = 15
Number of skateboards = 6
Step-by-step explanation:
Number of bicycles and skateboards = 21
Number of new wheels ordered = 54
Number of wheels in a bicycle = 2
Number of wheels in a skateboard = 4
Number of skateboards and bicycles in shop?
Let number of bicycles = b
Number of skateboards = s
b + s = 21 - - - (1)
(2*b) + (4*s) = 54
2b + 4s = 54 - - - - - - (2)
From (1)
b = 21 - s
2(21 - s) + 4s = 54
42 - 2s + 4s = 54
42 + 2s = 54
2s = 54 - 42
2s = 12
s = 6
From : b = 21 - s
b = 21 - 6
b = 15
Number of bicycles = 15
Number of skateboards = 6