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
Anettt [7]
3 years ago
9

Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve

yed, 13 said the test was easy, 11 rated it as moderate, and 3 found it difficult. Assuming that all students took the same test, how many of the 162 total students in Christian’s grade would probably rate the test something other than easy?
A.
27
B.
78
C.
84
D.
126
Mathematics
1 answer:
Paraphin [41]3 years ago
8 0

Answer:

C.

84

Step-by-step explanation:

This question is solved using proportions.

From the sample:

11 + 3 = 14 out of 13 + 11 + 3 = 27 would rate the test something other than easy.

Out of 162:

Applying the rule of three:

14 - 27

x - 162

Applying cross multiplication:

27x = 14*162

x = \frac{14*162}{27}

x = 84

Thus the correct answer is given by option C.

You might be interested in
Find the following of each arc measure
Dimas [21]
ZW= 108
VW= 55
UY= 34
8 0
3 years ago
The length, width, and height of a rectangular prism are in the ratio 3:2:1, respectively. What is the length of the prism if it
Arturiano [62]
The three numbers have to multiply to 48 in a ratio of 3:2:1
which would be 6:4:2
so 6 inches
6 0
3 years ago
The vertical change between 2 points.
fredd [130]

Answer:

what does it look like we need that

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Answer and explanation please?
nignag [31]
The answer would be A. m= -3/5 and b=-4/5
"m= -5-1 divided by 7--3
or, -6/10
or, -3/5.

to find the (B)

<span><span>(-3,1). y=mx+b or 1=-3/5 × -3+b, or solving for b: b=1-(-3/5)(-3). b=-4/5.</span><span>(7,-5). y=mx+b or -5=-3/5 × 7+b, or solving for b: b=-5-(-3/5)(7). b=-4/5.</span></span>See! In both cases we got the same value for b. And this completes our problem.

<span><span>The equation of the line that passes through the points(-3,1) and (7,-5)is</span><span>y=-3/5x-4/5"</span>
Source: webmath</span>
5 0
3 years ago
In circle P, TN = 22.4 in.<br>What is the length of MP ?<br>MP = [1] in.​
Vlad1618 [11]

Answer:

Given: TN=22.4 inches

So MP is half that amount

22.4/2= 11.2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • NOT SURE NEED HELP PLEASE​
    6·2 answers
  • 10. Jaylen went to the store to purchase hot dogs for a party. At the store,
    5·1 answer
  • PLEASE ANSWER THIS QUICKLY
    14·1 answer
  • Percentages:
    5·1 answer
  • -3x - y = 2 and 12x – 4y = 4
    10·1 answer
  • 1.7 + (–5) + (–3.27)
    14·1 answer
  • It has 5 questions so I'm giving more points ill also mark brainliest (or what ever its called) if its not a random answer :P
    8·2 answers
  • Point A lies on the circle and has an x-coordinate of 1.
    8·2 answers
  • Donaldo is trying to figure out the recursive form of the following sequence to understand some of the expenses reported in his
    14·1 answer
  • F(x) = 3(2)x What is f(4)?<br><br> A. 24<br> B. 12<br> C. 4<br> D. 48
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!