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LenaWriter [7]
3 years ago
9

If you want to buy an item in a store that costs $25 an is on sale for 10% off

Mathematics
1 answer:
kumpel [21]3 years ago
8 0

Answer:

2.50$ off or 22.50$

Step-by-step explanation:

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3 years ago
On Monday it was 70 degrees. On Tuesday it dropped to 45 degrees. What was the percent of change?
Tomtit [17]

Answer:

The answer is 64.29% hope it helps

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2 years ago
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Is (6/5, 2) a solution to y = x + 4/5​
steposvetlana [31]

Answer:

Yes, it is.

Step-by-step explanation:

y = x + 4/5

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2 = 10/5

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What is the rate of change of the line through (2,3) and (3,8)?
Luda [366]

The rate of change of a line is regarded as the slope/ gradient (m) of the line

The slope/ gradient (m) of the line moving through points (x₁,y₁) and (x₂,y₂) is given as

\begin{gathered} \text{slope (m)=}\frac{y_2-y_1}{x_2-x_1} \\ \text{Where x}_1=2,y_1=3_{} \\ \text{and x}_{2=}3,y_2=8 \end{gathered}

On substituting the above values in the formula above we will have the slope to be

\begin{gathered} \text{Slope (m)=}\frac{8-3}{3-2} \\ \text{slope (m)=5/1} \\ \text{slope (m)=5} \end{gathered}

Therefore,

The rate of change of the line through (2,3) and (3,8) is 5

8 0
1 year ago
Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2. a. Write an equation in two variab
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Answer:

a. C(x) = $16, if 0 ≤ x ≤ 10

   C(x) = 2x - 4 if x > 10

b. Independent: Number of DVD rentals

   Dependent: Monthly cost of rentals

c. $26

Step-by-step explanation:

a. The cost (C) of renting 'x' DVDs is given by:

If 10 ≤ x ≤ 10

C(x) = $16

If  x > 10

C(x) = 16 + 2(x-10)

C(x) = 2x - 4

b. Since the cost depends on the number of DVD rentals, cost is the dependent variable and number of DVD rentals is the independent variable.

c. For x = 15:

C(15) = 2*15 - 4

C(15) = $26

It costs $26 to tent 15 DVDs in one month

5 0
2 years ago
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