Answer:
X= 8
Step-by-step explanation:
Answer:
Part of work left to finish after two work hours is 7/20
Step-by-step explanation:
Firstly, we need to calculate their joint work rate
That will be;
1/(1/5 + 1/8) = 1/(13/40) = 40/13
This means that they will complete the task in 40/13 hours
1 whole part takes 40/13
x part will take 2 hours
x * 40/13 = 2
40x = 26
x = 26/40
So the part that will be completed in two hours is 26/40
This means that the part left to complete will be:
1 - 26/40 = 14/40 = 7/20
Answer:
7 m
Step-by-step explanation:
Circumference of a circle uses the formula;
Circumference = 2 × pi × radius(r)
If the circumference = 44
then we use the formula above to calculate the value of the radius,
44 = 2 × pi × r...then divide both sides by (2 × pi(3.14))
Radius = 44 ÷ ( 3.14 × 2)
;Radius = 7.01
;Radius = 7m
