My math question says-
1 1/2:9 = x:18
Now I gotta figure out the missing number [x]...I have 3 guesses on what answer the missing number [x] is!
Either-
A)2 1/2
B)3/4
or
C)3
Which one is it?
1 1/2:9 = x:18
1 1/2/9 = x/18
x = 1 1/2*18/9
x = 3
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To solve the equation 1 1/2 : 9 = x : 18, you need to find the value of x.
Here's how you can do it step by step:
Step 1: Convert 1 1/2 to an improper fraction.
1 1/2 as an improper fraction is (2*1 + 1)/2 = 3/2.
So, the equation now becomes: 3/2 : 9 = x : 18.
Step 2: Write the second ratio using the same denominator as the first ratio.
Multiply 9 and 2 to get the common denominator, which is 18.
Therefore, the equation becomes: 3/2 : 9/1 = x : 18.
Step 3: Simplify the equation by cross-multiplying.
Multiply the numerator of the first ratio by the denominator of the second ratio and vice versa.
(3/2) * (18) = (9/1) * (x).
27 = 9x.
Step 4: Solve for x.
Divide both sides of the equation by 9 to isolate x.
27/9 = 9x/9.
3 = x.
So, the missing number, x, is equal to 3.
Looking at your options, the correct answer is C) 3.