Solving proportions using cross products:
½ = x /18
To solve the proportion using cross products, you can set up the equation:
1/2 = x/18
To find the value of x, you can multiply both sides of the equation by 18:
18*(1/2) = 18*(x/18)
9 = x
Therefore, x = 9.
whats the simple answer
The simplified answer is x = 9.
To solve the proportion ½ = x/18 using cross products, follow these steps:
Step 1: Identify the cross products of the proportion.
The cross products are the numbers that are diagonally opposite to each other. In this case, the cross products are ½ and 18.
Step 2: Set up an equation using the cross products.
Write the cross products as an equation by multiplying the numbers diagonally opposite to each other and setting them equal to each other.
(1/2) * 18 = x
Step 3: Simplify the equation.
Multiply 1/2 by 18.
9 = x
So, x = 9 is the solution to the proportion ½ = x/18.
To solve the proportion using cross products, you can use the formula:
a/b = c/d
In this case, your proportion is:
½ = x/18
To solve for x, you need to cross-multiply.
Cross-multiplication involves multiplying the numerator of the first fraction (a) by the denominator of the second fraction (d), and then multiplying the denominator of the first fraction (b) by the numerator of the second fraction (c).
So, in our proportion:
1 * 18 = ½ * x
18 = x/2
To isolate x, you can multiply both sides of the equation by 2:
2 * 18 = 2 * (x/2)
36 = x
Therefore, x is equal to 36.