If you're asking how this is possible,
Answer and explanation:
If Sandy and Allen's mother does the job in 5 hours
And Allen and Sandy's contributions completes the job in 2.5 hours
5 hours - 2.5 hours =2.5 hours
Allen and Sandy's contribution is half of the time it took only Allen and Sandy's mother= 2.5 hours
Therefore Allen and Sandy together will take 2.5×2 = 5 hours to complete the job alone without their mother
A similar example: if it takes one person 2 hours to peel 5 potatoes and it takes 1 hour to peel same number of potatoes if a second person helps, then this second person reduces the time used by 1 hour(50%) and would take 2 hours to complete the work.
Answer:
Circumference = PI * diameter
Circumference = 3.14159 * 14
Circumference = 43.98226 inches
Area = PI * radius^2
Area = PI * 7^2
Area = PI * 49
Area = 153.9380400259 square inches
Step-by-step explanation:
Answer: 3.14 is pi and is non rationable if that’s the word.
Step-by-step explanation:
For this case we have:
One hundred equals 100
three times fives equals
So, rewriting the expression we have:
Answer:
One hundred divided by the quantity three times fives is equivalent to 
Answer:
The nth terms: 15,24,33,42,51,60,69,78,87,96,105...
Step-by-step explanation:
The nth term of an arithmetic sequence is given by an = a + (n – 1)d. So, to find the nth term, substitute the given values a = 2 and d = 3 into the formula
