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Arisa [49]
3 years ago
9

Find the mean of the data shown in the stem–and–leaf plot below. Round your answer to the nearest tenth.

Mathematics
1 answer:
forsale [732]3 years ago
8 0
Mean = (9.1 + 9.2 + 9.3 + 9.3 + 9.5 + 10.4 + 10.5 + 10.6 + 10.6 + 10.7 + 11.1 + 11.1 + 11.4 + 11.8 + 11.9 + 11.9 + 12.4 + 12.7 + 12.9)/19 = 196/19 = 10.3
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The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
inna [77]

Answer:

   33 1/3 percent smaller

Step-by-step explanation:


The number a exceeds the number b by 50 percent.

a = b + b*.5

a = b(1.5)

Divide by 1.5

a/1.5 = b

2/3a =b



We want to find (a-b)/a  to find the percent decrease

                           (a-2/3a)/a *100percent

                             (1/3a)/a* 100 percent

                                  1/3 * 100 percent

                                     33 1/3 percent smaller

5 0
2 years ago
Solve for x<br><img src="https://tex.z-dn.net/?f=8%20%7B%7D%5E%7B2%20%2B%20x%7D%20%20%20%2B%202%20%7B%7D%5E%7B3x%7D%20%20%3D%203
Stella [2.4K]

Answer:

8^2+x + 2^ 3x = 32^ 1/2

2^3(2+x) + 2^3x = 2^5^1/2

All two's will cancel out

3(2+x) + 3x = 5^1/2

6+3x + 3x = 5^1/2

6 +6x = 2.23

6x = 2.23 - 6

6x = -3.77

x = -3.77÷ 6

x = -0.63

7 0
3 years ago
What is the midpoint of 2,6 and 10,12
-BARSIC- [3]

Answer:

               = 6, 9

Step-by-step explanation:

To find the midpoint , we use the formula

midpoint = (x1+x1)/2, (y1+y2)/2

             = (2+10)/2,  (6+12)/2

               = 12/2, 18/2

               = 6, 9

5 0
2 years ago
Read 2 more answers
60% of 75<br> find the percent.<br><br> please help! :o
Vera_Pavlovna [14]

Answer:15


Step-by-step explanation:


6 0
3 years ago
Help asap please for brainlist !!!!!!!!!
IgorLugansk [536]
Bff i answered this earlier. It’s step 2!!! Because if you’re flipping the numerator and denominator, the sign of the exponent should be flipped as well. So the exponent will turn into -5x
Sorry if my previous answer was vague. #brainliest!!!
3 0
2 years ago
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