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stepan [7]
2 years ago
13

Mrs. Wheeler had a bowl of M&M’s sitting on her table. Her daughter Lauren told her that she thought there were 100 M&M’

s in the bowl. They decided to count them to see if Lauren was correct. There were actually 75 What was her percent error rounded to the nearest tenth?
Mathematics
1 answer:
laiz [17]2 years ago
8 0

There was 33.3% error in her calculation.

Step-by-step explanation:

Approx value thought by Lauren = 100

Exact value counted = 75

Percent error = \frac{|approx-exact|}{exact}*100

Percent\ error=\frac{|100-75|}{75}*100\\\\Percent\ error=\frac{|25|}{75}*100\\\\Percent\ error=\frac{2500}{75}\\\\Percent\ error=33.33\%

Rounding off to nearest tenth;

Percent error = 33.3%

There was 33.3% error in her calculation.

Keywords: percentage, error

Learn more about errors at:

  • brainly.com/question/8224301
  • brainly.com/question/8280736

#LearnwithBrainly

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Divide 20m^2n^3 - 10m^2n by 5mn
Sonja [21]

\frac{20 {m}^{2} {n}^{3}  - 10 {m}^{2}n  }{5mn}  \\  =   \frac{5mn(4m {n}^{2} - 2m) }{5mn}  \\  = 4 {m}^{2} n - 2m \\  = 2m(2mn - 1)

Hope this helps. - M
6 0
3 years ago
Solve each triangle - find any missing side and angle measures. Round answers to the nearest tenth.
Basile [38]

The sides of the right-angle triangle will be 16 units and 20.30 units. And the missing angle will be 52°.

<h3>What is a right-angle triangle?</h3>

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

The side AC will be

tan 38° = 12.5 / AC

      AC = 15.999

      AC ≈ 16 units

Then the side AB will be

AB² = 12.5² + 16²

 AB = 20.30 units

We know that the angle sum is 180 degrees. Then we have

∠A + ∠B + ∠C = 180°

38° + ∠B + 90° = 180°

                  ∠B = 52°

More about the right-angle triangle link is given below.

brainly.com/question/3770177

#SPJ1

6 0
1 year ago
The subtraction property of equality states that the two sides of an
yawa3891 [41]

Answer:

False

Step-by-step explanation:

The answer is in its name. Its a property of equality meaning it makes sure that both sides are equal to each other

3 0
1 year ago
The diameter of a circle is 14in. Find its area in terms of pie(urgent)
Soloha48 [4]

The area of a circle is equal to:

\pi \times {r}^{2}

r = 1/2 the diameter

1/2 of 14 is 7

7 squared is 49

<em><u>The area is 49π</u></em>

4 0
3 years ago
PLEASE HELP TEST IS TIMED
DaniilM [7]

45.5

hope it help thanks

6 0
3 years ago
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