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
antoniya [11.8K]
3 years ago
8

The next test will be a hundred points total, but only forty questions will be asked. Some questions are worth two points each a

nd the rest are four points each. How many of each questions is there?
Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0

Answer:

  • 10 questions that are 4-point
  • 30 questions that are 2-point

Step-by-step explanation:

<em>Numerical reasoning</em>

If all questions were 2-point, the total score would be 80. It is 20 more than that. Each 4-point question that replaces a 2-point question will add 2 points to the score, so there must be 20/2 = 10 of them.

There are 10 4-point questions and 30 2-point questions.

_____

<em>With an equation</em>

Let x represent the number of 4-point questions. Then 40-x is the number of 2-point questions. The total number of points is ...

... 2(40-x) +4x = 100

... 2x +80 = 100 . . . . simplify

... 2x = 20 . . . . . . . . .subtract 80

... x = 10 . . . . . . . . . . divide by 2.

There are 10 4-point questions and 40-10=30 2-point questions.

You might be interested in
PLZ HELP! 10 points
garri49 [273]

Answer:

i believe it is y=4x+1

Step-by-step explanation:

y intercept is 1, slope is up 4 over 1

sorry if im wrong, hope this helps :)

5 0
3 years ago
Which lists show numbers ordered from least to greatest? Choose all that apply.
saw5 [17]
The answer is C. -<span>3 3/4, -2 1/4, 1 1/8 

It is because the highest number in the negatives, -3 3/4, is always the lowest. Obviously if there is no negative sign it is positive. 1 1/8 is the only positive so it is the greatest. And -2 1/4 is lower that -3 3/4. So it is higher than -3 3/4 but lower than 1 1/8.

I'm sorry I'm not the best explainer, but does this help?</span>
7 0
3 years ago
Plz help me out with this and do show work I will be waiting.... btw u will be marked brainliest!!!!!! Fast plz
pychu [463]

Answer:

x=16°

Step-by-step explanation:

5*x-30=2*(x+18)

For the second, I'd say it is:

5*x-30=2*x+18  

Let's solve both.  

5*x-30=2*(x+18)

5x-30=2x+36

3x=66

x=22  

5*x-30=2*x+18

3x+48

x=16°

8 0
3 years ago
How do you write an equation involving absolute value
sweet [91]
Ex: l -3 l = 3.

the two vertical lines on either side stand for absolute value, or the distance to 0 from the given number.
THE ANSWER WILL ALWAYS BE POSITIVE (except...)

however, if there is a negative sign on the OUTSIDE of the bars, the answer will be NEGATIVE.

ex: - l -4 l = -4
ex: l -4 l = 4
8 0
3 years ago
PLEASEE HELP MEEE
Thepotemich [5.8K]
The task is to find the original coordinates with the transformed ones given, so you have to apply the inverse of the stated transformations.

Q"( 6,-1),R"(0,-1) and S"(0,-7)
-> rotate 90 anti-clockwise
Q'(1,6), R'(1,0),S'(7,0)
-> translate left by 7 units
Q(-6,6), R(-6,0), S(0,0)
3 0
3 years ago
Other questions:
  • HELP MEH!!! A cylinder has a height of 1.2 cm and the following base.
    9·2 answers
  • ENTER numbers into the table so that the paired values are in a proportional relationship.
    12·1 answer
  • Can anyone log into my clever and do my work for me?
    6·2 answers
  • What is the product of 2p+q and -3q-6p+1
    12·1 answer
  • Alana’s baby brother weighed 137 oz when he was born. What is his weight in pounds<br> and ounces?
    8·1 answer
  • Determine wether the graph shows a positive correlation, negative correlation, or no correlation. If there is a positive or nega
    11·1 answer
  • What is the area of a parallelogram that has the length of 3.5cm and the height of 2.3cm?
    6·1 answer
  • A foreign country uses the stellar as its currency. Before a trip to that​ country, Jon wants to exchange ​$1,200 to stellars. W
    11·1 answer
  • Kira can run 5 miles for every 30 minutes. how many minutes will it take her to run 8 miles?
    7·2 answers
  • The distance between Manchester and Leicester is 105 miles c) what is the distance in km
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!