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3 years ago

(05.03)An irregular polygon is shown below:

Mathematics

1 answer:

SVEN [57.7K]3 years ago

7 0

9units sorry for not showing work though but glad I can help

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a train traveled at an average speed of 45 miles per hour for 2 hours and 30 miles per hour for 3 hours. what is the total numbe

Allisa [31]

Distance=rate times time
rate=xmiles per hour
time=y hours

total distance=distance1+distance2
distance1=45mph times 2=90mi
distance2=30mph times 3=90mi
total distance=90mi+90mi=180mi

total is 180mi

7 0

3 years ago

Read 2 more answers

If isme estimated that there are 50 students in the seventh grade class but there are actually 40 what is isme’s percent error?

Temka [501]

The percent error is 25 %

Solution:

Given that it is estimated that there are 50 students in the seventh grade class, but there are actually 40

To find: percent error

Percent error is the difference between a measured and known value, divided by the known value, multiplied by 100%

The formula for percent error is given as:

$\text{ percent error }=\frac{\text { approximate value }-\text {exact value}}{\text { exact value }} \times 100$$

Here, exact value = 40 and approximate value or estimated value = 50

Substituting the values in above formula,

$\begin{aligned}&\text { percent error }=\frac{50-40}{40} \times 100\\\\&\text { percent error }=\frac{10}{40} \times 100=\frac{100}{4}=25\end{aligned}$

Thus the percent error is 25 %

8 0

3 years ago

Cameron earns $7 per hour. How much does he earn in 5 hours

ANEK [815]

All you have to do is multiply both

5 0

3 years ago

Sarah is going to the store to buy bread for a picnic. She needs twice as many slices of bread than cheese slices. She has 24 ch

Anastaziya [24]

Answer:

4 bags of bread

Step-by-step explanation:

8 0

3 years ago

31.693 Rounded to the nearest Hundredth

ioda

Hi there!

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I believe your answer is:

31.69

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Here’s why:

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'9' is in the hundredths place. The rounding is the digit to it's right, or '3'.
Since 3 is less than or equal to 4, we would round down.

⸻⸻⸻⸻

31.693 ≈ 31.69

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Hope this helps you. I apologize if it’s incorrect.

7 0

3 years ago