If y varies directly as x and y = 21 when x = 5, find x when y = 42.

10

Step-by-step explanation:

varies directly means:

Step 1: solve for k   ⇒  

Step 2: plug in the given value and k to solve for the missing value:

42(5) = 21(x)

2(5) = x

10  = x

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

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