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Eddi Din [679]
3 years ago
14

Find the mean of the data in the bar chart below.

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0
<h2>Answer:</h2>

12

<h2>Step-by-step explanation:</h2>

<u><em>The mean is also the average.</em></u>

Add up all the number of students all together:

12+13+14+9

48

Now, Divide the total amount of students (48) by the amount of numbers you added (in this case, 48/4 because we added 4 numbers wich are 12+13+14+9)

The average amount of students is 12

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Find s8 for the following geometric sequence: 3, – 6, 12, – 24.
Alekssandra [29.7K]

Answer:

B. -255

Step-by-step explanation:

This picture is from the user of: DBlaze.

4 0
3 years ago
Jamal Buys a lunch special for $9.50And a dessert for $3.50. He wants to leave a tip that is about 15% of the bill. He estimates
sergey [27]

Answer:

  His estimate is somewhat low.

Step-by-step explanation:

The total bill is $9.50 +3.50 = $13.00. The estimated tip is 15% of $10, so Jamal needs to add 15% of $3, or $0.45, to his estimate to leave a tip equal to 15% of the bill.

The tip Jamal has calculated is about 11.5% of the bill. (1.50/13.00 ≈ 0.1154)

The tip Jamal wants to leave is $1.95. (0.15·13.00 = 1.95)

3 0
3 years ago
A stock market analyst observes the following for the price of two stocks that he owns, one of which is increasing at an exponen
Alenkasestr [34]

Answer:

Use the formulas and find 5th term of both and compare

<u>Stock A</u>

  • a₅₀ = 15(50) + 143 = $893

<u>Stock B</u>

  • a₅₀ = 24(1.1)⁴⁹ = $2561.25

<u>As we see Stock B share has greater value in 50 years and the difference is:</u>

  • $2561.25 - $893 = $1668.25
4 0
3 years ago
A museum sells postcards of famous paintings. The postcards must be the same shape as the painting.
denis-greek [22]
C is the correct shape.

Explanation:

The ratio of the sides must be the same for the postcard and the painting. The painting has a ratio of 30.25 to 25.25. If you simplify this and divide both sides by 5, you get 6.05 to 5.05, which matches C.

Hope that helps!

-Grace
3 0
3 years ago
Solve: z/2 + 26 &gt; 17.5
Sophie [7]

Answer:  Z> -17

z/2+26=17.5

We move all terms containing z to the left and all other terms to the right.  

+ 0.5z=+17.5-26

We simplify left and right side of the equation.  

+ 0.5z=-8.5

We divide both sides of the equation by 0.5 to get z.  

z=-17

7 0
3 years ago
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