To calculate the percentage of incorrect answers, subtract the correct answers from the total amount, resulting in 5 incorrect answers. Then divide the incorrect answers by the total problems, multiplied by 100, giving us 25% incorrect.
The subject is the calculation of percentages, specifically determining what percent of the test problems a student got incorrect. To find the answer, first subtract the number of problems the student got correct (15) from the total number of problems on the test (20). This gives you 5 incorrect answers. Then, to convert this number into a percentage, divide the number of incorrect problems (5) by the total number of problems (20) and multiply by 100. This gives an answer of 25%. So, the student got 25% incorrect on the test.
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Answer:125.6 feet
Step-by-step explanation:
diameter=40 feet
π=3.14
Circumference= π x diameter
Circumference=3.14 x 40
Circumference=125.6
Answer:
Perimeter A = 122.5
Step-by-step explanation:
Set up the following proportion
The Perimeter of B = 12 + 9 + 9 + 5
The Perimeter of B = 35
7/2 = x/PerimeterB
7/2 = x / 35 Cross multiply
7*35 = 2x Combine the left side
245 = 2x Divide by 2
245/2 = 2x/2 Do the division
122.5 = x
The Perimeter of A = 122.5
Problem 3
If you compare the sides opposite the angle marked with a single arc, you will get the scale factor.
If these triangles are similar, and one of the sides opposite their markings will give you the scale factor
18/7.2 = x/1 where x is the scale factor going from the larger to the smaller triangle.
2.5 = x
So if you multiply the smaller triangle's sides by 2.5 you get the larger triangle.
measuring cup marked in ounces. How many ounces of water should he pour?
Answer:
The amount of water he should pour in ounces(that is the only units the cup measures) is 16 + 4 = 20 ounces
Step-by-step explanation:
He is told to dissolve a medicine he has in 1 pint 4 ounces of water . He has a measuring cup marked in ounces .This means he can only measure the water quantity in ounces.
He definitely have to convert the pints to ounces.
1 pint = 16 ounces
Recall he has to dissolve the medicine in 1 pint 4 ounces of water.
Since 1 pint is equals to 16 ounces therefore, 16 ounces + 4 ounces = 20 ounces.
The amount of water he should pour in ounces(that is the only units the cup measures) is 16 + 4 = 20 ounces
Answer:
You need to Choose a 0.01 significance level , instead of 0.05 significance level.
Step-by-step explanation:
Consider the provided information.
It is given that type I error has been committed.
Type I error occur, if we rejected the null hypothesis even null hypothesis is true.
We reject the null hypothesis if p-value < α
Accept the null hypothesis if p-value ≥ α
According to given condition the value of α is 0.05 that means 95% chance that your assumption is correct and 5% chance that assumption is wrong.
In order to reduce the risk of this error you need to increase the significance level so that the value of α becomes lower than the p value.
lower α means you will be less likely to detect a true difference if one really exists.
Hence, you need to Choose a 0.01 significance level , instead of 0.05 significance level.
Answer:
49 degrees
Step-by-step explanation:
You just subtract 41 degrees from 90 degrees because it's a right angle.