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
nexus9112 [7]
3 years ago
14

A test is worth 80 points. Multiple-choice questions are worth 2 points, and

Mathematics
1 answer:
gavmur [86]3 years ago
4 0

Answer:

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Test worth 80 points

Multiple-choice questions are worth 2 points

Short-answer questions are worth 4 points

Multiple-choice questions + Short-answer questions = 25

2. How  many multiple-choice questions are there?

Let's solve this problem, this way:

m = Multiple-choice questions

s = Short-answer questions

Our equations system is:

m + s = 25

2m + 4s = 80

Solving for m in the 1st equation:

m + s = 25

m = 25 - s

Substituting m in the 2nd equation and solving for s:

2m + 4s = 80

2 * ( 25 - s) + 4s = 80

50 - 2s + 4s = 80

2s = 80 - 50

2s = 30

<u>s = 30/2 = 15</u>

Substituting s in the 1st equation and solving for m:

m = 25 - 15

<u>m = 10 </u>

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

You might be interested in
Write the equation of the line in fully simplified slope-intercept form.
nadezda [96]

Answer:

x intercept [a]=3

y intercept [b]=-5

we have

equation of a line is:

x/a+y/b=1

x/3+y/-5=1

(5x-3y)=15

5x-3y-15=0 is a required equation

4 0
3 years ago
Hi guys,
VladimirAG [237]
Umm, That's A lot Of Homework...
8 0
3 years ago
Find the value of x in 2(x+1)=4​
Anni [7]

Answer:

x = 1

Step-by-step explanation:

We need to solve for x by isolating the variable.

First, expand the parentheses:

2(x + 1) = 4

2 * x + 2 * 1 = 4

2x + 2 = 4

Then subtract by 2:

2x + 2 - 2 = 4 - 2

2x = 2

Finally, divide by 2:

2x/2 = 2/2

x = 1

Thus, x = 1.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Sovle the question l-9l + l-1l ​
Arada [10]

Answer:

10

Step-by-step explanation:

| | means absolute value. Absolute value is always positive, so your equation would be evaluated to 9 + 1 = 10

7 0
3 years ago
Read 2 more answers
Someone pleasee help me with this freaking IXL.
Norma-Jean [14]
The answer is 1761 1/2 (1761.5 in decimal form)
6 0
3 years ago
Other questions:
  • 81 2/7% answer as a fraction in simplest form
    8·1 answer
  • Steve wants to know what the average ACT scores of students graduated from his high school is. He randomly selected 25 students
    5·1 answer
  • Please Help!!! 5 STARS<br> Let cos(−θ)=45 and tanθ&gt;0 .<br><br> What is the value of sin(−θ) ?
    13·1 answer
  • if Santa increased his deliveries from 27 percent to 33 percent in 1999, and then to 39 percent in 2000, and this same pattern c
    11·1 answer
  • Find the fourth roots of 81(cos 320° + i sin 320° ). Write the answer in trigonometric form.
    12·2 answers
  • a square has a perimeter of 38 inches. We want to know the length of each side. choose the best model for the problem
    10·2 answers
  • Helppppppp meeeee please
    11·2 answers
  • Guys I need Help. Please someone answer.<br><br>​
    14·1 answer
  • I need help ASAP! Its about Geometric Drawings
    7·1 answer
  • A single die is rolled twiceFind the probability of rolling a 6 the first time and a 1 the second time.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!