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
Alborosie
3 years ago
9

You just received your final exam score from your teacher. At the top of the exam, it says you missed three questions and got 42

out of 45 questions correct, for a score of 88%. You think your teacher may have made an error when calculating your percentage. If your teacher did make a mistake, what was most likely done incorrectly?
Mathematics
2 answers:
True [87]3 years ago
4 0

Answer:

Yes she made an error.

Step-by-step explanation:

42/45 = 0.93333

0.93333 × 100 = 93.3333

I'm not sure what she did wrong but maybe she added 3 to the 45 total to get 42/48 = 87.5 which rounds to 88.

Leno4ka [110]3 years ago
3 0

Answer:

below

Step-by-step explanation:

I would guess that they added 42 and 45 and then added 1 for their mistake. That might be a bit of stretch, but that is what I think

You might be interested in
A survey question revealed that at a particular college 87 percent of students worked at least sometime during their undergradua
Elanso [62]

Answer:

The correct option is A. 198 degrees

Step-by-step explanation:

Consider the provided information.

87 percent of students worked at least sometime during their undergraduate career and 13 percent did not work at all.

Another question showed that 32 percent of the students worked throughout their undergraduate career.

87 percent  of the students worked at least sometime during the college. Out of them 32% worked throughout the college.

Therefore, the students who worked sometime during their undergraduate career, but not throughout are:

(87-32)% = 55% .

As we know the angle measure in circle  is 360 degrees.

55% of 360° is:

\frac{55}{100}\times360= 198

Hence, the measure of central angle would be 198 degrees

Therefore, the correct option is A. 198 degrees

8 0
3 years ago
Simplify the expression 5+(4+x)
photoshop1234 [79]
5 + 4x
I think that’s right
4 0
3 years ago
Read 2 more answers
On Monday, Rachel bought 13 yards of fabric in order to make face masks. Later that day, she purchased another 6 3/4 yards. On W
Vladimir [108]

Answer:

14.65

Step-by-step explanation:

You add 13 + 6 3/4 then subtract 5 1/10 from that and you have your answer.

5 0
3 years ago
What are scenarios for the ratios 2:10, 10:2, & 12:1?
frozen [14]

Answer:

2:10 2/10 2 to 10 10:2 10/2 10 to 2 12:1 12/1 12 to 1

Step-by-step explanation:

3 0
3 years ago
Simplify the expression 467,000×0.0002 using scientific notation and expression your answer in scientific in notation
elixir [45]

Answer:9.34×10^1

Step-by-step explanation:

To simplify 467000×0.0002 in scientific notation

We get

467000×0.0002

=93.4

=9.34×10^1

8 0
3 years ago
Other questions:
  • The problem is: 2x-2(x-2y)+1/4(4x-12y)
    12·1 answer
  • Gus has skydived 4 more times than Nico. Emma has skydived twice as many times as Nico. If Emma has skydived 16 times, how many
    10·1 answer
  • Please help! I can't figure this out!
    10·1 answer
  • FIn the solutions for x:<br> (√x+1) + (√4x+13) = (√3x+12)
    5·1 answer
  • Im not sure about this im confused
    13·2 answers
  • I need helppp I’m stuck
    6·1 answer
  • Elena needs 1/4 meter of ribbon to decorate the border of a photo frame.
    12·1 answer
  • Doctors recommend that teenagers sleep between 9 and 912 hours each night. Melody and Wilmer construct a box plot to display sle
    7·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Csqrt%7B29-12%5Csqrt%7B5%7D" id="TexFormula1" title="\sqrt{29-12\sqrt{5}" alt="\sqrt{29-12\s
    15·2 answers
  • Need help with Q6. Kdkdndndnfndndndndndncjndjfjc
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!