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
Irina18 [472]
3 years ago
9

Deanna gets 3 problems incorrect on a math quiz. Her score is 85%. How many questions are on the quiz?

Mathematics
1 answer:
Vilka [71]3 years ago
5 0

Answer:

20 questions.

Step-by-step explanation:

Let  x  be the number of questions on the quiz.

85 %  means  85  out of  100  (or  85/ 100  )

85/ 100   = 3/x

--->100-85=15

--->15/3=5

--->100/5=20  

Meaning each question was worth 5% and there were 20 questions.

You might be interested in
Susie leaves to go shopping driving 45 miles per hour toward the Happy Shopper Grocery Store.
mafiozo [28]

Answer:

Susie reaches the store first being ahead by 0.06 hours.

Step-by-step explanation:

20 miles going 45 miles/hour.

20 miles / (45 miles / hour) = 20 miles hours / 45 miles =

= 20 hours / 45 = 4/9 hours = 0.44 hours

25 miles going 50 miles/hour.

25 miles / (50 miles / hour) = 25 miles hours / 50 miles =

= 25 hours / 50 = 1/2 hours = 0.5 hours

So Susie needs less time (= arrives first).

the difference is 0.5 - 0.44 = 0.50-0.44 = 0.06 hours

as additional practice :

0.06 hours is 60 × 0.06 minutes.

60 × 0.06 = 60 × 6 / 100 = 360 / 100 = 3.6 minutes.

6 0
3 years ago
Please help! If you do you will get 'Brainliest'
aalyn [17]

Answer:

B

Step-by-step explanation:

This is because 1/2 down from 1 1/2 is 1 then go 2 down on the number lone and you get 1 (B)

5 0
3 years ago
Read 2 more answers
What do you call the number that you divide by?
skelet666 [1.2K]

Answer:

the number that you divide by is called the dividend and the number which the dividend is being divided by is the divisor.

7 0
3 years ago
107,600 115,220 104,910 median, mode, mean
san4es73 [151]

Answer:

<u>1. Mean =  342.7 (Rounding to the nearest tenth)</u>

<u>2. Median =  167.5 </u>

<u>3. Mode = There isn't a mode for this set of numbers because there isn't a data value that occur more than once. </u>

Step-by-step explanation:

Given this set of numbers: 107, 600,  115, 220,  104, 910, find out these measures of central tendency:

1. Mean = 107 + 600  + 115 + 220 + 104 + 910/6 = <u>342.7</u> (Rounding to the nearest tenth)

2. Median. In this case, we calculate it as the average between the third and the fourth element, this way:

115 + 220 =335

335/2 = <u>167.5 </u>

3. Mode = <u>There isn't a mode for this set of numbers because there isn't a data value that occur more than once. All the data values occur only once.</u>

5 0
3 years ago
Answer this question
Katen [24]

Step-by-step explanation:

It is (A)95° by using External Angle Property of triangles.

BTW whats up with that order C-D-B-A

8 0
4 years ago
Other questions:
  • Find the sales tax for three cds if each cd is 14.29 and the sales tax is 7.25%
    13·1 answer
  • Initially, there were only 86 weeds in the garden. The weeds grew at a rate of 8% each week. The following function represents t
    8·2 answers
  • You throw a ball up and its height h can be tracked using the equation h=2x^2-12x+20.
    6·1 answer
  • Given 4x − 8y = 8:
    14·1 answer
  • Find the reciprocal of 19/13
    9·2 answers
  • The figures below are made out of circles, semicircles, quarter circles, and a square. Find the area and the perimeter of each f
    5·1 answer
  • Jack can long-jump 195% of his height with a running start. If Jack is 50 inches tall, how far can he long-jump?
    6·1 answer
  • Which point is at 4/3 on the number line?
    5·1 answer
  • Formular for area of a circle
    5·2 answers
  • Someone please help i will give brainliest
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!