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4 years ago

Casey paid $32 for a book that was on a sale at 20% off. What was the original price for that book?

Mathematics

2 answers:

Elis [28]4 years ago

8 0

Answer:

$40

Step-by-step explanation:

If it was 20% off, you are paying 80% of the original price.

So .80 * Original price = $32

32/.8 = 40

Dvinal [7]4 years ago

4 0

Answer:

$40

Step-by-step explanation:

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What inequality describes the solutions of 2y less than or equal to 8?

In-s [12.5K]

Answer:

*View attached graph*

Step-by-step explanation:

$2y\leq 8$

$/2$ $/2$

$y\leq 4$

Hope this helps!

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3 years ago

Michael worked 10 hours and earned $175 constructing fencing. If he averages 8 yards per hour, how much is he paid for each yard

ryzh [129]

So, $175 is the total of 10 hours of his work. We have to divide the 175 to 10 so that we can get his hourly wage. 175 divided by 10 is 17.5. Multiply the 17.5 to 8 hours, its $140

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4 years ago

Mattias bought a package of 5 notebooks for $13.95. What is the unit price per notebook?

Marysya12 [62]

Answer:

2.79

Step-by-step explanation:

this solution:

5x=13.95

x=13.95/5

x2.79

so answer is 2.79

5 0

3 years ago

Read 2 more answers

Given the relations A: (3,2), (5,3), (6,2), (7,4) which statement is true?

In-s [12.5K]

Answer:

Option 3.

Step-by-step explanation:

The given relation is

A= {(3,2), (5,3), (6,2), (7,4)}

A relation is called a function, if there exist a unique value of y for each value of x.

In relation A, there exist unique output for each input. So, A is a function.

If a relation is defined as R = {(a,b), a∈R,b∈R}, then inverse of R is

R⁻¹ = {(b,a), a∈R,b∈R}

So, inverse of A is defined as

A⁻¹= {(2,3), (3,5), (2,6), (4,7)}

Here, the value of y are 3 and 6 at x=2.

For x=2, there exist more than one output. So, A⁻¹ is not a function.

Therefore, the correct option is 3.

8 0

3 years ago

I need help with these four

Kazeer [188]

Answer:

True, b), c), b)

Step-by-step explanation:

True

b) sin = opposite/hypotenuse

Cos A = 0.1908
A = arccos 0.1908
A = 79° ⇒ Option c)

tan A = 16/19
A = arctan 16/19
A = 40° ⇒ Option b)

8 0

3 years ago