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yanalaym [24]
3 years ago
11

Dana surveyed students in her class. She found that 8 earned an A, 6 earned a B, 4 earned a C, and 2 earned a D on the last scie

nce test. If she randomly surveys one more student from the class, what is the experimental probability that the student would have earned an A on the test.
Mathematics
2 answers:
Over [174]3 years ago
8 0

Answer:

2/5

Step-by-step explanation:

Dana surveyed 20 students in total and out of those 20 only 8 got an A

so:

now if you simplify it  and if you simplify it again:

or 0.4 in decimal

lozanna [386]3 years ago
7 0

Answer:

0.4 or 2/5

Step-by-step explanation:

Dana surveyed 20 students in total and out of those 20 only 8 got an A

so:

\frac{8}{20} now if you simplify it \frac{4}{10} and if you simplify it again:

\frac{2}{5} or 0.4 in decimal

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A​ cone-shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to one-sixth its​ hei
Liono4ka [1.6K]

Answer:

  1/216

Step-by-step explanation:

The ratio of volumes of similar shapes is the cube of the scale factor. The filled portion of the cone is similar to the entire cone.

<h3>Linear scale factor</h3>

If the filled height is 1/6 of the total height, the scale factor for linear dimensions is 1/6.

<h3>Volume scale factor</h3>

The scale factor for the volume is the cube of the scale factor for linear dimensions. it is ...

  (1/6)³ = 1/216

The volume of the filled portion of the cup is 1/216 of the volume of the cup.

8 0
2 years ago
Explain how to do this math problem all the way threw 6times2 and 7/10
Anestetic [448]
So first multiply the whole numbers.
6x2=12
Now multiply 6 and 7. When multiplying a fraction like this, do the numerator ONLY. So it ends up being 42/10.  That can be turned to a mixed number. To do that, find out how many times 10 can go into 42. The highest whole number is 4.
10x4=40 and there's 2 left over. So make it 2/10 which can be simplified to 1/5
Now add.
12+4=16+1/5= 16 1/5
3 0
3 years ago
Question 8 of 20
Gnesinka [82]
C is the answer because the X factors can’t repeat
3 0
3 years ago
3xy^3 + 5- x- 2xy^3= xy^3 +11<br><br> Solve please
snow_lady [41]

Answer:


Step-by-step explanation: 3XY 3+5-X-2XY3=XY3+11  USE THE COMMUTATIVE PROPERTY TO REODER THE TERMS...3Y3+5-X-2XY3=XY3+11 COLLECT LIKE TERMS Y3+5-X-Y3X+11..Cancel equal terms on both sides of the equation 5-x=11 move constant to the right side and change its sign  -x=11-5 subtract the numbers -x=6 final answer is X=-6


8 0
4 years ago
Read 2 more answers
Maranda and rory are multiplying 4 1/3 by different fractions the table shows there work
topjm [15]

Fractions are numbers represented by the quotients of two integers

Rory's product is less than Maranda's because 13/9 is less than 13/3

<h3>How to determine why Rory has a lesser product</h3>

The expressions are given as:

Maranda: 4 1/3 * 4 1/3 * 1/3

Rory: 4 1/3 * 1 4/9

For Maranda, we have:

M = 4\frac 13 * 4\frac 13

Rewrite the fraction

M = 4\frac 13 * \frac{13}3

For Rory, we have:

R = 4\frac 13 * 1\frac 49

Rewrite the fraction

R = 4\frac 13 * \frac {13}9

When Maranda and Rory's expressions are compared, we have:

13/9 is less than 13/3

Hence, Rory's product is less than Maranda's because 13/9 is less than 13/3

Read more about fractions at:

brainly.com/question/11562149

3 0
3 years ago
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