Antonio is buying a stereo, speakers, and amplifiers for his car audio system. He is choosing among 4 models of stereos and 3 styles of speakers. If he has 36 different choices, how many kinds of amplifiers must there be?
2
3
4
12

Answer:

Let the number of kinds of amplifiers be "a".

Antonio has 4 choices for the stereo and 3 choices for the speakers. Therefore, the total number of different choices he can make is:

4 (choices of stereos) x 3 (choices of speakers) x a (choices of amplifiers) = 12a

We are given that he has 36 different choices, so:

12a = 36

Dividing both sides by 12, we get:

a = 3

Therefore, there must be 3 kinds of amplifiers.

The answer is (B) 3.

A steak costs $4 more than a hamburger, and a hamburger costs $4 more than a grilled cheese sandwich. If six grilled chees sandwiches cost 2x dollars, how much will 4 steaks and 2 hamburgers cost?

(I understood this question but I don't know why I am keep getting the wrong answer lol)

In 1803 the United States purchased the Louisiana Territory from France
for $15 million. In 1867 the United States purchased Alaska from Russia
for $7.2 million. The purchase of Alaska occurred how many years after
the purchase of the Louisiana Territory?

Simplify the following

5/8 × 6/7

an iceberg weighs 450000 pound is it loes 0.2 percent of its weight in 1 day whats the enw weight

Describe and correct the error in solving the equation. Solve the equation algebraically in the "Show Your Work" box. Put your final answer in the space below. Check your solution.

The original price of a table sold in an electronics store was $308. Members of the electronics store can purchase the tablet at a lower price of $246.40. Use proportion to find the percent (%) of discount for members.

help I'm not sure what the answer is.

what is the median weight of the mice ?

carrie records the weight s , in ounces , of 8 mice for a science project in the list

below . what is the median weight of the mice ?

⇔ 0.71 , 0.66 , 0.63 , 0.73 , 0.70 , 0.68 , 0.66 , 0.66 ⇔

Please assist if you know math. Thank you for your patience.

The surface of the cuboid below is 128cm squared. Find the length x.

2 5/6 x 2/5 = ?
Get it right I Will mark brainly. But!! If you copy and paste I will report and take all your points!

The point (−8, −10) was reflected over an axis to (8, −10). Which axis was it reflected over? Explain.

x-axis, because the x-coordinate is the opposite
x-axis, because the y-coordinate is the opposite
y-axis, because the x-coordinate is the opposite
y-axis, because the y-coordinate is the opposite

Help pls explain due at 7:45
What is the mean of the following set of numbers?

121, 347, 45, 21, 300, 614, 312, 333, 421

A.279.3
B,no mean
C.312
D.251.4

how do you find surface area with a detail explanation.
giving briniest.

paulo used clay to make the cube shown.he wants to make a larger cube with an edge length that is twice as long.how many ounces of clay does he need to make this larger cube?

PLEASE TELL ME WHAT"S THE ANSWER AND SHOWM E HOW YOU GOT THE ANSWER

1. Last month, Lucy and Britney each read three books. The tables show the number of pages in each book and the time it took Lucy and Britney to read each book. Which of the tables, if any, represent a proportional relationship?

A) Lucy's table represents a proportional relationship.

B) Neither Lucy's nor Britney's tables represent a proportional relationship.

C) Both Lucy's and Britney's tables represent a proportional relationship.

D) Britney's table represents a proportional relationship.


2. Which statement is TRUE?

A) The constant of proportionality for Lucy's table is 26.

B) The constant of proportionality for Britney's table is 26.

C) The constant of proportionality for Lucy's table is 28.

D) The constant of proportionality for Britney's table is 28.

What are the areas of these shapes?

What is the theme of the story? How is it revealed by the actions of the characters? Use details from the story to support your response.

Frabjous Day

Everyone at our lunch table was silent; our small world had been rocked to the core. Derrick, president of the computer chess club stared at his lunch tray as if it held some sort of threatening, inedible concoction from another planet. Laurel, the leader of my literary discussion group, was pale, looking as though she were coming down with some nasty illness. We had just learned that Frabjous Day, the best and only bookstore in our small town might have to close. Business was just too slow. (The charming name, of course, was from Lewis Carroll's nonsense poem "Jabberwocky.") People were purchasing books online or downloading them to their e-readers. No one seemed interested in a real bookstore anymore. This impacted us not only because our groups met at Frabjous Day, but also because we believed that the bookstore added value to life and the community.

"We need to save Frabjous Day, and we have to get all our classmates involved in the effort," Laurel said, breaking the painful silence. She was right, but the obstacles in our way made climbing Mt. Everest look like a walk in the park. We represented just a few people at our school, and we had no idea how to reach everyone.

"My brother is always quoting his basketball coach," Derrick said, "One word that keeps coming up is 'strategy.' Maybe that's what we need: a unique strategy to get everyone to recognize the value of Frabjous Day and become involved in the store."

I admired the idea immediately. Come to think of it, my literary group had recently read a classical book on strategy called The Book of Five Rings. It was written in the 1600s by a Japanese swordsman, and it describes the necessity of discipline, perception, and outthinking your opponent. I remembered a quote about there being more than one path to the mountaintop, which seemed appropriate.

After several days, we had developed a plan. First we talked with our principal and then with the owner of Frabjous Day. Finally, we set up a big display at school under the banner STRATEGIES FOR SUCCESS. We exhibited books like the Five Rings and a book written by a championship-winning basketball coach. We had a book of political writings by Gandhi and another on effective environmental conservation. I personally selected biographies of successful people, including a biography on a fabulously successful actress. We had a big sign that read: "Build strategies for succeeding at what you love! Visit Frabjous Day this afternoon after school. You'll learn a lot and enjoy free sandwiches and cookies." Laurel thought of that last part because, after all, food always brings people together.

Crowds of students turned up that afternoon. We knew we needed them to actively commit to saving the store. Derrick, a master at chess strategy, devised a personalized group approach for the athletes. He showed students how to play a computerized strategy game, explaining how to use the idea on a personal or athletic level. Under a sign reading "Have a blind date with a book," Laurel set up a display of books covered in brown paper, with a brief handwritten description of the contents that was purposefully vague, yet very enticing. I invited a TV personality who grew up in our town. Everyone wanted to meet a real celebrity! Even better, people got excited about helping each other and the bookstore.

Our local librarian, Mr. Chung, contributed the best idea of all. His college roommate had been the now famous guitarist and singer Joel J. Mr. Chung and Joel were also best friends with Cecily Armstrong, whose latest mystery novel was on the best-seller list. Mr. Chung printed out raffle tickets to be given with each book sold. At the end of the year, some lucky winner would have his or her name in an original Joel J song lyric. Another lucky winner would be a character in Ms. Armstrong's next novel. The raffle was a huge success. There was no doubt that Frabjous Day was going to have many frabjous days ahead.

In triangle ABC, let the angle bisectors be BY and Cz. Given AB = 8, $AY = 6, and CY = 3, find BZ and BC.
please help soon

A designer creates a drawing of a triangular sign on centimeter grid paper for a new business. The drawing has sides measuring 6 cm, 8 cm, and 10 cm, and angles measuring 37°, 53°, and 90°. To create the actual sign shown, the drawing must be dilated using a scale factor of 50.

Part 1 out of 4
Find the lengths of the sides of the actual sign.
__ cm, ___ cm, ___ cm

Given that a company lets you download songs for $0.99 each after you pay a $5 fee to be a member, evaluate f(4) for the function of total cost for x songs.

1. 3.96

2. 9.90

3. 21. 96

4. 8.96

If y = 17 inches, z = 24 inches, h = 7 inches, and w = 3 inches, what is the area of the object?

please help math sucks

i really need help please

Is the following example a biased question.

Would you prefer to watch a comedy or an action movie?

True False

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the linear function y = 5x + 6 represents the cost in dollars , "y" , for a person to bowl "x" games at a bowling alley. what is most likely represented at the y-intercept of this function?

A. The y- intercept is the cost of a large drink.
B. The y- intercept is the cost per hour to bow..
C. The y- intercept is the cost of a one time fee for renting bowling shoes.
D. The y- intercept is the number of games bowled.

what is the surface of this sphere with a radius of 10 mn

PLEASE HELP WILL GIVE BRAINLIEST!--

What value of y makes the equation true?

3(2y + 3) = 9y - 15