Answer: Marie is 34 and Joanna is 21.
To find this you first subtract 13 from 55. This will give you 42, which you then divide by 2 to find Joanna's age. Finally you simply add 13 to Joanna's age to find Marie's age (34). To check this, add 34 and 21 together, which gives you 55.
I hope this helps!
Answer:
Step-by-step explanation:
295 (miles to drive altogether) - 115 (miles already driven) = 180 (miles left to drive)
115 (miles already driven) / 2 (how many hours it took to reach 115 miles) = 57.5 (miles per hour)
180 (miles left to drive) / 57.5 (miles per hour) = 3.13 (hours it will take to reach the 295-mile mark at a rate of speed of 57.5 miles per hour)
So, you will have to drive more miles per hour than 57.5 miles per hour to be able reach the 295-mile goal, because it would take approximately 3 hours to drive the remaining 180 miles.
You will have to drive AT LEAST 72 miles each hour, and then 36 miles in the half hour to be able to reach the 295-mile mark.
I hope this helps, and is a thorough enough explanation :)
Answer: See explanation
Step-by-step explanation:
From the question, we are informed that a coach has 17 pompoms to give to her cheerleading team and that each cheerleader needs 2 pompoms to compete.
The greatest number of cheerleaders that can compete will be calculated as:
= 17 / 2
= 8 1/2
Therefore, the greatest number of cheerleader is 8.
There be 1 pompom remaining.
Answer:
42.70
Step-by-step explanation:
Answer:
Substitute the variables: