70
60°
65°
J
40°
Find the value of y

Class             fi      C.F

10−20        12        12

20−30        30        42

30−40         x         42+x

40−5065107+x Median class

50−60         7        107+x+y=107+80=187

60−70        25       132+x+y=132+80=212

70−80        18        150+x+y=230

A/Q, N=230

⇒ x+y=80

2N=115

Median =40+65115−42−x×10

⇒6573−x×10=6

⇒73−x=1065×6

⇒73−x=39

⇒x=34      ∴    y=46

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.