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xeze [42]
3 years ago
9

Find the percent decreased original price: $40 sale price: $30

Mathematics
1 answer:
stich3 [128]3 years ago
4 0

Answer:

25 percent

Step-by-step explanation:

Percent decrease = (original - new)/original * 100 percent

                              = (40-30)/40 * 100 percent

                              = 10/40 * 100 percent

                              = .25 * 100 percent

                               =25 %

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Answer for brainlist & extra points! i can see if your answer is correct or not :)
ioda

Answer:

The equation simplifies to n = 7.

Step-by-step explanation:

Hey there! We have an algebraic equation with the variable <em>n</em>. We want to solve for n. Therefore, we need to simplify the expression as much as we can.

To do this, we're going to notice we have two like terms in the equation:

  • 71
  • 1

These two terms can be combined to make one term. In order to do this, we're going to check which side of the equation has two terms.

  • Left side → 1 term
  • Right side → 2 terms

We are going to then check the sign of the constant. As a reminder, constants are numbers without a variable attached to them.

We see our constant is 1 on the right side and it is positive due to it being added to 10<em>n</em>. Therefore, we are going to do the opposite and subtract it from 71.

  • 71 - 1 = 70

This leaves us with a more simplified equation: 70 = 10n.

To make things easier, we're going to use the commutative property and switch the terms around. This will give us 10n = 70. It is easier to operate when our variable term is on the left side.

Now, we need to get our variable by itself. A coefficient is multiplying the variable by that value, so to reverse that, we must divide.

In addition to that, what we do on one side of the equation must be done on the other side of the equation.

\displaystyle \frac{10n}{10} = \frac{70}{10}

This simplifies to n = 7, which is our final answer.

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3 years ago
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AnnZ [28]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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Which of the following expressions shows how to rewrite 5 − 6 using the additive inverse and displays the expression correctly o
Andru [333]

The correct display of the expression on a number line is number line (c)

<h3>How to determine the expression that shows how to rewrite 5 − 6 using the additive inverse?</h3>

The complete question is added as an attachment

The expression is given as:

5 - 6

Put 6 in a bracket.

So, we have:

5 - 6 = 5 - (6)

Express 6 as --6

So, we have:

5 - 6 = 5 - -(-6)

Rewrite as:

5 - 6 = 5 + (-6)

The above means that the arrow on the number line must start from 5 and moves in the negative direction in 6 units

The correct display of the expression on a number line is number line (c)

Read more about number lines at:

brainly.com/question/24644930

#SPJ1

7 0
1 year ago
I chose circle is closed and graph is shaded to the left of the circle and it said that was wrong. Please help, thank you
Tems11 [23]
The circle is closed and the graph is shaded to the right also there’s a negative on the x, you have to get rid of it first by dividing by -1 and then you switch direction of the less than or equal to greater than or equal because you divided by negative

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Round the number to the place of the underlined digit.<br><br> 4.327 (The underlined Digit is 3)
Genrish500 [490]

Answer:4.3

You round to the tenths place

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3 years ago
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