1 year ago

Please help me with this I would give you 50 points.

Mathematics

1 answer:

NNADVOKAT [17]1 year ago

5 0

Melanie has to pay $81.25

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Z=a/b+c/d solve for A

PilotLPTM [1.2K]

Answer: $a=\frac{b(zd-c)}{d}$

Step-by-step explanation:

Having the following equation given in the exercise:

$z=\frac{a}{b}+\frac{c}{d}$

You can solve for "a" following this procedure:

1. You can apply the Subtraction property of equality and subtract $\frac{c}{d}$ from both sides of the equation:

$z-(\frac{c}{d})=\frac{a}{b}+\frac{c}{d}-(\frac{c}{d})\\\\z-\frac{c}{d}=\frac{a}{b}$

2. Now you must subtract the terms on the left side of the equation. Notice that the Least Common Denominator is "d". Then:

$\frac{zd-c}{d}=\frac{a}{b}$

3. Finally, you can apply the Multiplication property of equality and multiply both sides of the equation by "b". So, you get:

$(b)(\frac{zd-c}{d})=(\frac{a}{b})(b)\\\\a=\frac{b(zd-c)}{d}$

6 0

2 years ago

Wendy is paid $12 per hour and plans to work between 30 and 25 hours per week identify the independent and dependent quantity in

zheka24 [161]

So first uadd 30 with 25 the the answer u get u multiply with 12 hope that helps

8 0

3 years ago

1. Write and solve an expression

nata0808 [166]

Answer:

9<(5+7). the answer is 12

Step-by-step explanation:

hope it helps : )

7 0

3 years ago

A father is ten times as old as his daughter. In 5 years he will be just five times as old as she will be. How old are they now?

Nonamiya [84]

She is four years old which makes her father 40 that's ten times her age in five years she'll be 9 and he will be 45 which is 5 times her age. hope that helped you out.

8 0

3 years ago

Stefon is paid $25 to mow lawn. This amount is $4 less than twice the amount that he received when he first began mowing.What is

chubhunter [2.5K]

Write the scenario as an equation:
25 = 2x -4

Add 4 to each side.
29 = 2x

Solve for x
29/2 = x

Simplify
29/2 = $14.50

Stefon was making $14.50 when he first began mowing.

8 0

2 years ago