Step-by-step explanation:
I hope u are asking for average speed
average speed = total distance/total time
= 225/7.5
= 30 km/h or 30 km per hour
Answer:
33 newspapers per 1 pile.
Step-by-step explanation:
33+33+33=99
Answer:
Q1: 
Q2: 
Step-by-step explanation:
Q1: 12 : 16 = 3 : 4 =
Q2: 8.3 : 10 =
Answer:
? = 4.29
Step-by-step explanation:
Remark
Let x be the question mark. You get the proportionality by using the dimensions of the little triangle to the dimensions of the large triangle.
Equation
14/(14+ 4) = 15/(x + 15) Combine like terms on the left
14/18 = 15/(x + 15) Cross multiply
14*(x + 15) = 18 * 15 Simplify the right
14(x + 15) = 270 Divide by 14
x + 15 = 270 / 14
x + 15 = 19.29 Subtract 15 from both sides
x = 19.29 - 15
x = 4.29
Answer:
$4,500.
Step-by-step explanation:
1 year and 6 months is 18 months, so 250 times 18 is 4,500.
