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
lorasvet [3.4K]
3 years ago
13

The history test has 19 questions. There are

Mathematics
2 answers:
natta225 [31]3 years ago
7 0

Answer:

Step-by-step explanation:

Let x be the number of true or false questions.

Let y be the  number of multiple choice questions

Total questions = 19

x + y = 19   ---------------(i)

Total points = 100

4x + 6y = 100  ---------------(ii)

Multiply equation (i) by (-4).

(i)*(-4)            -4x - 4y = -76

(ii)                  <u>4x + 6y = 100</u>   {Now add. thus x will get eliminated}

                            2y = 24

y = 24/2

y= 12

There were 12 multiple choice question

Ivenika [448]3 years ago
4 0

Answer:

12 multiple choice questions

Step-by-step explanation:

The system of equations is:

m + t = 19 (quantity of questions)

6m + 4t = 100 (point value)

We use elimination to solve.

Multiply everything in the first equation by 4.

4m + 4t = 76.

subtract that from the second equation.

2m = 24

Divide both sides by 2.

m = 12

You might be interested in
F(x)=-x^2+5 I’m supposed to find the solution(s)
rewona [7]

If I'm not wrong, then it's not possible to make zero by adding 5 to a number squared and if it is not (-x)^2 +5 = 0, then how can you evaluate the value?

4 0
4 years ago
Important formulas included in derivative.​
allochka39001 [22]

Answer:

s d(f(x))dx=f′(x) and g’ means d(g(x))dx = g′(x) .

Step-by-step explanation:

4 0
3 years ago
Which information could not be used to show that triangle FGH=IJK by SAS?
daser333 [38]
The answer is option D
7 0
3 years ago
Read 2 more answers
Which expression gives the prime factorization of 80?
BigorU [14]

Prime Factors of 80 =2, 2, 2, 2, 5

<span>Which is the same as = 24 x 5Prime Factors Tree of 80
 80 
/     \
2     40
/       \
2      20
/       \
2      10
/       \
2      5
/       \
5      1

Hope this helps  :)</span>
6 0
4 years ago
Convert 6/9 into a fraction with a denominator of 27.<br><br> 6/27<br> 12/27<br> 9/27<br> 18/27
Sonja [21]
The answer would be the last one 18/27 because you would multiply 9 x 7 = 27 so then you would have to multiply the top by that too so 6 x 3 = 18 giving you 18/27
3 0
3 years ago
Read 2 more answers
Other questions:
  • 25/80 in simplest form
    9·1 answer
  • One week you tell 3 of your friends a secret. The next week, each of them tells 3 people the secret and the
    11·1 answer
  • What is the value of p?
    14·1 answer
  • What does x equal? <br> Thanks!
    10·2 answers
  • Plz...solve this question....<br>If n(A) = 37, n(B) = 50, and A is subsets of B, find n(AUB).​
    9·1 answer
  • Please please please please answer this correctly
    11·2 answers
  • How can the Fundamental Theorem of Algebra be used to show that any polynomial of odd degree has at least one root?
    10·1 answer
  • The ellipse x minus 3 quantity squared divided by 25 plus y minus 2 quantity squared divided by 16 equals 1&gt; has symmetry thr
    8·1 answer
  • PLEEAASESEEE HEELLPPPP
    10·1 answer
  • The sum of 3 consecutive integers is 48. What is the smallest of the integers?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!