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3 years ago

6. Determine if the two functions are inverses of one another.

Mathematics

1 answer:

-BARSIC- [3]3 years ago

6 0

It will be yesssssssssssssssssssssssssssssssss

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Please help it OVER DUE

kotykmax [81]

You know the total amount, 32.00, and the cost of each gallon, 1.60, so you can make an equation using x as the amount of gallons bought.

1.60x = 32.00

Now just divide 32.00 by 1.60

x= 32.00/1.60

x= 20

5 0

3 years ago

I just need help explaining it. solve the system of equation

Maksim231197 [3]

SOLUTION

Write out the equation

$\begin{gathered} y=\frac{1}{3}x-3 \\ 5x-3y=-3 \end{gathered}$

To solve this system of equation, the aprropriate method will be substitution

Substitute the expression for y into the second equation for y, we have

$5x-3(\frac{1}{3}x-3)=-3$

Expand the paranthesis we have

$\begin{gathered} 5x-x+9=-3 \\ \text{Simplify},\text{ by subtracting 9 from both sides } \\ 4x+9-9=-3-9 \\ 4x=-12 \end{gathered}$

Divide both sides by 4, we have

$\begin{gathered} \frac{4x}{4}=-\frac{12}{4} \\ \text{Then} \\ x=-3 \end{gathered}$

Since the value of x has been obtained, we substitute into the first equation

$\begin{gathered} y=\frac{1}{3}x-3 \\ \text{ recall x=}-3 \\ y=\frac{1}{3}(-3)-3 \\ y=-1-4 \\ \text{Hence } \\ y=-4 \end{gathered}$

Therefore

x = -3, y= -4

6 0

8 months ago

alexandra is dividing 3/4 of a yard of fabric into3/8 yard pieces of fabric.How many pieces of this size will she have?

bija089 [108]

Answer:

2 pieces

Step-by-step explanation:

3/4 ÷ 3/8

3/4 x 8/3 = 12/6 = 2

5 0

3 years ago

Read 2 more answers

Solve: Vx - 3+ 5 = 4

inn [45]

Answer:

The answer is 4

5 0

2 years ago

Please help me.What is an equation that represents this situation?

tester [92]

For the top question, the answer is D
Because 16 divide by 4, equals 4

3 0

3 years ago