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3 years ago

The regular price of running shoes is $89.00. They are on sale for 20% off.

Mathematics

1 answer:

noname [10]3 years ago

8 0

Answer:

a. 17.80 b. 71.20

Step-by-step explanation:

I used to hate percents. Let me teach you a trick:

take the og value (89) and multiply it by the percentage (20% or 0.2). Then once you have that answer (17.80), subtract it from the og value (89-17.80). That's your answer for how much you still owe! (71.20)

any other follow up questions? Just ask :)

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ddd [48]

La estimacion de Rita tiene un margen de error de 3% pero si lo vemos del modo de que esta redondeando la respuesta es correcta plisssss dame respuesta mas inteligente la necesito para subir de nivel

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3 years ago

I’m really confused on this problem., pls help me!

777dan777 [17]

Answer:

Domain: All Real Numbers

Range: All Real Numbers

Step-by-step explanation:

So the domain of a function can be defined as an interval of x-values, which you can input into the function and get real numbers as an output. Since we have a cube root here, or more specifically an odd nth root, the domain is all real numbers, since cbrt(negative number) will just be a negative number since (negative number * negative number * negative number) = negative number, so there does exist a solution, unlike even nth roots like square root, which is restricted to only positive values inside the radical, otherwise you get non-real solutions.

Now let's look at the range of the function, which can be defined as an interval of y-values which can possibly be outputted by the function.

Since as mentioned before, the cube root isn't limited to a certain interval, and rather all real numbers, the range is also similar, since whenever you have a negative number in the radical, the output will be a negative number, so the range is all real numbers

8 0

2 years ago

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Solve inequality ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍

artcher [175]

Answer:

x < 64

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle \frac{x}{8} < 8$

Step 2: Solve for x

[Multiplication Property of Equality] Multiply 8 on both sides: $\displaystyle x < 64$

Here we see that any number x less than 64 would work as a solution to the inequality.

4 0

3 years ago

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Which expression shows the result of applying the distributive property of 3(2x – 6)?

jok3333 [9.3K]

Answer:

6x - 18

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Step-by-step explanation:

Step 1: Define

3(2x - 6)

Step 2: Expand

Distribute 3: 3(2x) + 3(-6)
Multiply: 6x - 18

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3 years ago

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PLEASE HELP! Solve for x. A.108 degrees B.72 C.18 D.17

sleet_krkn [62]

Answer:

Step-by-step explanation:

90 - 72 = 18

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3 years ago