Answer: Rafdeal has 9 sessions in 3 days.
Step-by-step explanation:
Given: Time spent on daily practice = hour
Duration of each session = hour
Number of sessions in a day =
The number of practice sessions Rafdeal has in 3 days = 3 x (Number of sessions in a day ) = 3 x 3 =9
Hence, the number of practice sessions Rafdeal has in 3 days = 9
Answer:
the rigth arel
Step-by-step explanation:
4d + 5i = 57
i = 2d - 11
4d + 5(2d - 11) = 57
4d + 10d - 55 = 57
14d = 57 + 55
14d = 112
d = 112/14
d = 8 <== Daphne's age
i = 2d - 11
i = 2(8) - 11
i = 16 - 11
i = 5 <==Isaac's age
Let selling price = SP and cost price = CP
He makes 20 % on selling price means = >
(sp-cp) / sp = 20 % = 20/100 = 0.2
(sp - cp) / sp = 0.2
1 - cp/sp = 0.2
1 - 0.2 = cp/sp
0.8 = cp/sp
Reversing 1 / 0.8 = sp/cp = 1.25
We need to find profit on cost price means =
=(sp-cp)/ cp
= sp/cp - 1 = 1.25 - 1 = 0.25
Means 25 % profit on cost price : Answer
Hope that will help :)
24-7.5=16.5
5-36 =-31
-16.5/31