((frac{x}{y}) + rw = z)
Solve for x in the equation above.
x=y(zrw)
x=rw(yz)
x=w(z+ry)
x=rwyz
Correct Answer : A
The question requires us we make x the subject of the formula.
First, we subtract rw to both sides of the equation
Multiply both sides by y
Thus, the formula for finding the value of x is y(zrw).
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Related Questions
Correct Answer is D
Explanation

Add 13 to both sides to isolate the absolute value term, resulting in( left3x7 ight= 15)

Consider two cases:
 When (+(3x7))is positive, solve for x to get (3x = 15 + 7) then (3x=22)(finally x=frac{22}{3})
 When ((3x7)) is negative (but the absolute value makes it positive). Solve for x to get (3x = 15  7) then (3x=8)(finally x= frac{8}{3})
So, there are two possible solutions: (x=frac{22}{3} or x= frac{8}{3})
Correct Answer is D
Explanation
Explanation:
In this question, we need to find the ratio of dimes to quarters.
If we let x be number of pennies in the bottle. Then,
Number of quarters in the bottle = 4x
Number of nickels in the bottle = 3x
Number of dimes in the bottle =5(3x)=15x
Now relating dimes to quarters, we have
Thus, there are 15 times as many dimes as pennies in the box.
Correct Answer is B
Explanation
Explanation:
We need to find the value of x from the given equation. First, we move the value of 10 to the righthand side of the equation.
Add 10 to both sides of the equation
Next, we apply the absolute rule:
If , a>0, then u=a or u=a
In this case a=12, which is greater 0. Then, the first condition becomes
Solving for x
The second condition becomes
Solving for x
Then, the value of x is 4 or 8.
Correct Answer is A
Explanation
The question requires us we make x the subject of the formula.
First, we subtract rw to both sides of the equation
Multiply both sides by y
Thus, the formula for finding the value of x is y(zrw).
Correct Answer is B
No explanation
Correct Answer is d
Explanation
We are asked to form an equation to find Joe’s uncle’s age to the age of Joe.
First, we find Joe’s age which is k. We know that Joe’s uncle’s age is four times that of Joe less 8. Then,
Joe’s uncle’s age, u = 4k8.
Thus, the age of Joe’s uncle is u=4k8.
Correct Answer is C
No explanation
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