since the cross multiples are equal, you find a product and use the inverse operation as you would in an equation
Example 4 is to 36 as 3 is to X: 4/36 = 3/X --> 4*X = 3*36. Divide both sides by 4, to solve for X = 27.
is over of = percent of 100
is/of=%/100
What is 10% of 40.
is = x
x/40 = 10/100
cross mulitply 40*10= 400/100=4 x=4
F to C: Deduct 32, then multiply by 5, then divide by 9 C to F: Multiply by 9, then divide by 5, then add 32
2x/7 = 11 Multiply both sides by 7: 2x = 77 Divide both sides by 2: x = 77/2 = 38.5
divide
Divide both sides of the equation by 12: x = 2
Divide both sides by 64 to find the value of x
When doing fractions, you may cross multiply.
cross multiplacation. put the 3 numbers into fractions and than multiply the 2 diagnol numbers then divide by the third.
say it is 1 over 2 is equal to x over 4 you multiply 4 and 1 then 2 and x and you get 4=2x. Solve for x = 2. So the equivalent proportion is 2/4.
set up a proportion. cross multiply. solve
To solve this you have to set up a proportion. 5.2/8=x/100 Then you cross multiply to get 520=8x. Then you divide by 8 to attain an answer of 65, or 65%.
You can cross-multiply or go on Google for more help...
yes ... and so?
F to C: Deduct 32, then multiply by 5, then divide by 9 C to F: Multiply by 9, then divide by 5, then add 32
Cross multiply then solve for the variable.
Easiest way is probably cross-multiplying. a/b=c/d ad=bc There are other methods. Like (a+b)/b=(c+d)/d
you multiply the number by 3.73 then divide the number i might be wrong :( sorry
F to C: Deduct 32, then multiply by 5, then divide by 9 C to F: Multiply by 9, then divide by 5, then add 32