52/65=.8
52 is 80% of 65
there is a 20% discount
Answer:
7
Step-by-step explanation:
the answer would be 7 because if there is 2 in per hour just go 2,4,6,8,10,12
and then count all the numbers i did and that will be your answer (7)
let 1st and 2nd no be x and y respectively
1st case:x=4y
2nd case:x-y=12
substituting the value of x in 2nd case
4y-y=12
3y=12
y=12÷3
y=4
now putting the value of y in 1st case
x=4×4
=16
Answer:
the answer should be B
Step-by-step explanation:
the first part is basically finding the difference between the terms, as we know that d=T2-T1
so by comparing the T2-T1 and T3-T2 we can find the difference with the two variables h and k
afterwards do the same with T4-T3 and T3-T2, comparing them and you will get another equation
now that you have two equations, you can do simultaneous equation to get the answers
hope i helped :D