1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
4 years ago
8

Dr. Fitzgerald has graded 15 of 26 exams for Epi 501. (a) What proportion of all exams has Dr. Fitzgerald graded? (b) What was t

he ratio of graded to ungraded tests?
Mathematics
1 answer:
postnew [5]4 years ago
5 0

Answer: a) 15:26, and b) 15:11.

Step-by-step explanation:

Since we have given that

Number of graded tests = 15

Number of total tests = 26

Number of ungraded tests is given by

26-15\\\\=11

a) Proportion of all exams has Dr. Fitxgerald graded is given by

15:26.

b) Ratio of graded to ungraded tests is given by 15:11

Hence, a) 15:26, and b) 15:11.

You might be interested in
Your brother eats 1/6th of your birthday pizza. If the pizza has a diameter of 12 inches, what is the area that he ate
Kipish [7]

Answer:

18.84 in^2

Step-by-step explanation:

Area brother ate = 1/6 x area of pizza

a pizza is the shape of a circle. the area of a pizza is equal to the area of a circle

Area of a circle = πr²

r = 12/2 = 6

he diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

3.14 x 6^2 = 113.04

1/6 x 113.04 = 18.84

7 0
3 years ago
One stack has 6 cups, and its height is 15 cm. The other one has 12 cups, and its height is 23 cm. How many cups are needed for
Ronch [10]

Answer:

Given

Number of stacks = 2

Stack 1 = 6 cups; h1 = 15cm

Stack 2 = 12 cups; h2 = 23cm

Let's first find the average:

With an average of 4/3, to obtain the number of cups needed to obtain a height of 50m, we have:

50 / (4/3)

= 50 * 3/4

= 150/4

= 37.5

From the answer, we can see that the number of cups is not really proportional to the height of the stack, because the average of stack one and stack 2 are different.

Step-by-step explanation:

7 0
3 years ago
Which of the following is not true regarding sets of numbers ?
nasty-shy [4]

D. All rational numbers are integers

6 0
4 years ago
Read 2 more answers
George Box, a famous statistician, once said, "All models are wrong, but some are useful.” What did George Box mean by this stat
Katena32 [7]
Basically meaning that no model can exactly be on point with whatever it is modeling. Two things cannot be EXACTLY identical to what they are referring to, but it is saying that some can get close enough to be useful as an example. 

3 0
3 years ago
Read 2 more answers
Can I have help I am stuck on this problem It would mean the world if u helped me and tysm!! =-)
Marianna [84]

9514 1404 393

Answer:

   10·2^-8 grams

Step-by-step explanation:

The each day, the initial amount for that day is multiplied by 1/2. After 8 days, the initial amount has been multiplied by (1/2)^8, where the exponent of 8 signifies that (1/2) is a factor 8 times in the product.

After n days, the quantity remaining is ...

  q(n) = 10·(1/2)^n = 10·2^(-n)

after 8 days the remaining amount is ...

  q(8) = 10·2^-8 . . . grams

4 0
3 years ago
Other questions:
  • How does heat from charcoal stove reach the person near it
    10·1 answer
  • Round the number to the underlined digit.<br> 9,999
    15·1 answer
  • Ken finished 18 problems on his MAP test in 40 minutes at this rate how many problems will be finished in one hour?
    9·2 answers
  • Two bags contain marbels. Bag A conatains 112 marbles, and bag B contains 140 marbles. What percent fewer marbles does Bag A hav
    9·1 answer
  • Which of the following statements are equivalent to the statement “price increased by 100%”. Choose all correct answers
    5·2 answers
  • There were 25 children and 15 adults at the beach. Emery said that there were 5 children for every 3 adults. Is he correct. Expl
    5·1 answer
  • Which symbol would make this statement true?<br> 3 __ 4 __ 5<br> 1. =<br> 2. <br> 4. ≤<br> 5. ≥
    15·2 answers
  • A sample of bacteria is growing at a continuously compounding rate. The sample triples in 10 days.
    7·1 answer
  • The decimal notation of 9/4 use by multiplying by one
    5·1 answer
  • Find the sum of the first 36 terms of the following series, to the nearest integer.<br> 2, 5,8,...
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!