Answer:
240 girls
Step-by-step explanation:
Let number of girls be x.
160:x = 2:3
Multiply right side by 80--> 160:x = 160:240
x=240.
So there are 240 girls.
Answer:
Step-by-step explanation:
5x-x+3x=30 - since there is all x’s, you can combine like terms .
7x=30 now divide both sides by 7
x=4 2/7 = 30/7
Answer:
x= 9
Step-by-step explanation:
Please see attached picture for full solution.
Answer:
12km/hour
Step-by-step explanation:
The formula for how far he was jogging = Speed
Speed = Distance /Time
In the question,
Distance = 5km
Time = 5/12 hour
Speed = 5km / 5/12 hour
= 5 km ÷ 5/12 hour
= 5km × 12/5 hour
= 12km/hour
Therefore,Ezra was jogging as fast as 12 km/hour
Answer: This is an example of the range of variation.
Step-by-step explanation:
Range of variation here means the acceptable values of variance (in the miles covered) between the actual miles covered by the driver and the 160 miles standard as calculated by UPS.