You basically multiply across. 1/4 times 7/8 is 7/32 because numerator, 1 times 7 and denominator, 4 times 8. Hope it helps.
Answer:
Step-by-step explanation:
Area=pi×radius^2 so if diameter is 5 then radius is half that which is 2.5. So it should be a=3.14 × 2.5^2. I hope that's right.
Answer:
12.7 /100
= 127/1000 (cant be further simplified as 127 is a prime no.)
Step-by-step explanation:
Answer:
80% or 8/10.
Step-by-step explanation:
Assuming the shirts in the bottom right are the "black" shirts, there is ten total shirts (1 red, 4 blue, 2 green, 1 white, 2 black.) Out of the ten shirts, 8 are not black. This means that there is an 80% chance that you will select a shirt that is NOT black.