SKILL LEVEL Mastery
A motor boat travels a certain distance downstream in 5 hours.
It travels the same distance upstream in five and a half hours.
The speed of the water is 1.5 km/hr. What is the speed of the
boat in still water?
a 25.7 km/hr
b 31.5 km/h
C 48.2 km/h
d 18.5 km/h

you forgot an image

step-by-step explanation:

asdsad

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.