What are the terms in the expression 18xy + 3x + 7?

Mr. Valenzuela’s new bottle of shampoo contains 60 ounces of shampoo. He uses ounce of shampoo each time he washes his hair. Whi

Alina [70]

For this case, the first thing we will do is identify variables:
x: number of washings.
y: amount of ounces of remaining shampoo.
We write the equation taking into account:
1) bottle of shampoo contains 60 ounces
2) He used ounce of shampoo each time he washes his hair
The equation is:
y = -x + 60
Then, for y = 24 we have:
y = -x + 60
24 = -x + 60
We clear x:
x = 60-24
x = 36
Answer:
the number of washes after which 24 ounces will remain in the bottle is:
36 washes.

4 0

3 years ago

Read 2 more answers

Sam is looking at cell phone plans.A local company offers a monthly plan for 58.95dollars . The company is having a sale and off

mina [271]

Given :

A local company offers a monthly plan for 58.95 dollars.

The company is having a sale and offering a discount of 4.75 off the monthly plan.

To Find :

Sam says that the new cost is 11.45 explain Sam's error and find the correct new cost.

Solution :

Correct cost = Original price - Discount offered

Correct cost = $( 58.95 - 4.75 )

Correct cost = $54.2 .

Now, Sam's cost is $11.45 because he took $4.75 as $47.5 .

Hence, this is the required solution.

4 0

3 years ago

Please help me with this problem:Which properties justify the steps taken to solve the system?{2x−4y=183x+3y=0Drag and drop the

Hatshy [7]

First step.

If we multiply by 3 the first equation and by 2 the second equation we get the first step:

$\begin{gathered} 6x-12y=54 \\ 6x+6y=0 \end{gathered}$

therefore, the answer for the first box is: Multiplication property of equality.

Second step.

If we subtract both equations, we have

$-18y=54$

then, the answer for the second box is: Subtraction property of equality

Third step.

By dividing both sides of our last result by -18, we get

$y=\frac{54}{-18}=-3$

then, the answer for the third step is: Division property of equality.

Fourth step.

Once we have obtained the result for variable y (which is -3), we need to find the result for variable x. So, by substituting our result for y into the first equation, we have