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
Marta_Voda [28]
3 years ago
14

A test is worth 50 points. Multiple- choice questions are worth 1 point, and short answer questions are worth 3 points. if the t

est has 20 questions, how many multiple-choice questions are there?
A. m + 3s =20
B.m + 3s + 20 =50
C. m + 3s = 50
D. m + s + 50
Mathematics
2 answers:
bagirrra123 [75]3 years ago
3 0
Correct answer is C. 
m + 3s = 50 
the total number of questions is 20. since the paper is made of only multiple choice and short answer questions, the sum of the multiple choice and short answer questions should be 20.
since multiple choice is 'm' and short answer is 's'
then m + s = 20
but theres no option for that 
if we take the number of points 
points for 1 multiple choice question - 1
then points for m number of multiple choice questions = 1 * m = m
points for 1 short answer - 3
then points for s number of short answer question = 3 * s = 3s
then total number of points = m + 3s
and the total number of points = 50
therefore 
m + 3s = 50
this is the correct answer C.
nlexa [21]3 years ago
3 0

Answer with Step-by-step explanation:

Points for 1 multiple choice question = 1

Then, points for m number of multiple choice questions = 1 × m = m

Points for 1 short answer = 3

Then points for s number of short answer question = 3 ×s = 3s

Total number of points = m + 3s

and the total number of points = 50  

i.e. m + 3s = 50

Hence, correct option is:

C. m+3s=50

You might be interested in
S
lora16 [44]

Answer:

  B.  9

Step-by-step explanation:

We assume that ...

  SU = ST +TU

  133 = (9x-5) +(5x+12)

  126 = 14x . . . . . subtract 7, collect terms

  9 = x . . . . . . . . . divide by 14

7 0
3 years ago
Hii! please help asap. i’ll give brainliest
KonstantinChe [14]

Answer:

B) both mean and median

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Ally bought 5 different cakes for her birthday. His friends ate 3 1/4 of the amount of cake. Then he gave 1/2 of the cake to his
tamaranim1 [39]

Answer:

7/8 of a cake

Step-by-step explanation:

4 4/4 - 3 1/4 = 1 3/4

7/4 x 1/2 = 7/8

6 0
2 years ago
Give two examples that show how using parentheses can change the order I. Witch operations are performed in an expression
pantera1 [17]
The order of arithmetic operations is given by the acronym PEMDAS, which means
Parentheses,
Exponents,
Multiplication,
Division,
Addition,
Subtraction.

These two examples illustrate how the use of parentheses can change the order.

Example 1:
5+7/3x4-2/5 has an answer of 13.933.

Use PEMDAS to obtain
5+(7/3)x4-(2/5)
= 5+(2.3333x4)-0.4
= 5+9.3333-0.4
= 14.3333-0.4
= 13.933

If we apply the parentheses: (5+7)/3x4-2/5
The result is
(12/3)x4-(2/5)
= (4x4)-0.4
= 16-0.4
= 15.06
which is a different answer.

Example 2:
8/3²x5+4 has the answer 8.444

Use PEMDAS to obtain
8/(3²)x5+4
= (8/9)x5+4
= (0.8889x5)+4
= 4.4444+4
= 8.4444

If we apply the parentheses (8/3)²x5+4:
The result is
2.6667²x5+4
= 7.1113x5+4
= 35.5565+4
= 39.5565
which is a different answer.

3 0
3 years ago
Please help! i only have 4 more hours to get caught up!!
Kamila [148]

Answer:

I thinks it's y=3x+5

Step-by-step explanation:

try to use desmos to calculate it

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope of the line that passes through th epoints (26, 7) and (-39, 12)?
    8·1 answer
  • You have $270 in your bank account. You plan to save $80 from your paycheck each week. Which graph shows your bank account balan
    12·2 answers
  • What if you dont have a median in the lower and upper quartile on a number line?
    5·1 answer
  • 9 ten thousand divided by 10 in unit form and standard form
    8·1 answer
  • Just number 2 please i’ve tried many times... i need an equation and the answer :)
    5·1 answer
  • 50) A wheel has a radius of 9 inches and travels as it spins. How far does the wheel travel in one revolution? Show your work. U
    11·1 answer
  • 4 sin(2x) = 4 cos(x)
    9·1 answer
  • There are 49 students who play percussion which represents 70% of the band how many are in the band ?
    8·1 answer
  • Please enter the simple math question please hurry
    7·1 answer
  • Linear functions take the shape of a...
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!