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2 years ago

13

John is buying a necklace for his girlfriend. The original price is $100, but it is on sale for 25% off. Sales tax is 8.25%. How

much will he pay for the necklace

1 answer:

ruslelena [56]2 years ago

7 0

Answer: $81.1875

Step-by-step explanation:

First you have to subtract the 25% of 100 which 25 and it gives you 75 and then you find the 8.25% of 75 and you add it to 75

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If a and b are any two real numbers, explain how you calculate the difference a - b. Be sure to include the following in your ex

Tamiku [17]

- Subtraction can be thought of as the inverse operation of addition, OR as addition itself, if you look at it as adding a negative number.

- The number line allows us to interpret subtraction (or addition of a negative) geometrically; we can view it as a movement to the left on the number line with a distance equal to the number being subtracted.

- Lastly, the value of any expression a - b (where a and b are real numbers) is determined by the relative sizes of the numbers. If a > b, then a - b > 0 (a positive result). If b > a, then a - b < 0 (a negative result.

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2 years ago

Suppose that a chemist is mixing two acid solutions, one of 20% concentration and the other of 30% concentration. Which of th

Pani-rosa [81]

Answer:

4. 34%

Step-by-step explanation:

By mixing 20% and 30%, it will be between 20 and 30, like 22, 24 or 28. You would need a higher concentration than 30 to mix in to get 34%.

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2 years ago

Find the following values from the information given<br> cot(theta°); tan(theta°) = −0.0005

Greeley [361]

Answer:

cot(θ°) = 2000 radians

Step-by-step explanation:

Data provided in the question:

The value of tan(θ°) = −0.0005

To solve:

cot(θ°)

Now,

we know the relation between cot and tan function as:

cot(θ°) = $\frac{1}{\tan\theta}$

therefore on substituting the value of theta in the above relation, we can find the value of cot(θ°)

Thus,

cot(θ°) = $\frac{1}{-0.0005}$

or

cot(θ°) = 2000

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2 years ago

What question do you ask a basketball player from Indiana?

Leno4ka [110]

9514 1404 393

Answer:

WHOOSIER COACH

Step-by-step explanation:

Linear pairs are supplementary. Vertical angles are congruent. An angle is the sum of its parts.

(a) C: supplementary to 138°, 180° -138° = 42°

(b) O: congruent to 138°

(c) R: supplementary to 32°, 180°-32° = 148°

(d) H: congruent to 32°

(e) S: complementary to 28°, 90° -28° = 62°

(f) O: supplementary to 122°, 180° -122° = 58°

(g) W: congruent to 122°

(h) C: supplementary to 28°, 180° -28° = 152°

(i) I: supplementary to 60°, 180° -60° = 120°

(∠TSW) E: supplementary to a right angle: 180° -90° = 90°

(∠TSU) O: half the complement of 20°, (90° -20°)/2 = 35°

(∠USW) H: complement of ∠TSU, 90° -35° = 55°

(∠RSV) A: supplement of ∠VSW = 180° -35° = 145°

__

The desired order of the letters corresponds to the sequence of angles ...

122°, 55°, 58°, 35°, 62°, 120°, 90°, 148°, 71°, 152°, 138°, 145°, 42°, 32°

WHOOSIER_COACH

4 0

2 years ago

Steven practices playing his trumpet 4 days each week for the same amount of time. He practices a total of 3 hours each week. Ho

Nookie1986 [14]

45 mins!

Convert 3 hours into minutes which is 180.

Then divide 180 by the amount of days he has practiced,4

180/4=45

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2 years ago

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