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
Snezhnost [94]
2 years ago
9

Your teacher announced a 50-point math quiz for tomorrow. The quiz will have 15 questions with word problems worth 4 points each

and some open response questions worth 3 points each. Find the number of each type of question. You may use any of the methods to solve. Check your answer.
Mathematics
1 answer:
koban [17]2 years ago
3 0

Answer:

5  word problems(4points each)      &      10 open (3 points each)

Step-by-step explanation:

O= open response

W= word problems

  W+O =15

4W + 3O = 50

multiply the first by -3 to eliminate O

-3W -3O = -45

4W  + 3O = 50

  AD BOTH

W = 5    ( 5 questions word problems)

O= 10   ( 10 questions open response)

  5x4 = 20

10x3 = 30

      20 + 30 = 50 points

You might be interested in
Which Question Has roots of x= -2 and x
vazorg [7]

See explanation below.

Explanation:

The 'difference between roots and factors of an equation' is not a straightforward question. Let's define both to establish the link between the two..

Assume we have some function of a single variable

x

;

we'll call this

f

(

x

)

Then we can form an equation:

f

(

x

)

=

0

Then the "roots" of this equation are all the values of

x

that satisfy that equation. Remember that these values may be real and/or imaginary.

Now, up to this point we have not assumed anything about

f

x

)

. To consider factors, we now need to assume that

f

(

x

)

=

g

(

x

)

⋅

h

(

x

)

.

That is that

f

(

x

)

factorises into some functions

g

(

x

)

×

h

(

x

)

If we recall our equation:

f

(

x

)

=

0

Then we can now say that either

g

(

x

)

=

0

or

h

(

x

)

=

0

.. and thus show the link between the roots and factors of an equation.

[NB: A simple example of these general principles would be where

f

(

x

)

is a quadratic function that factorises into two linear factors.

4 0
3 years ago
On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee.
ziro4ka [17]
140 (number of customers) * .65 (% of customers who ordered a large coffee) = 91 customers who ordered a large coffee
4 0
3 years ago
Read 2 more answers
You have a bag of 12 marbles, 5 red, 3 green, 2 yellow & 2 orange. What is the P( red, then orange) WITHOUT replacing the fi
Readme [11.4K]

Answer:

Total number of marbles = 12

P (1 red & 1 orange) =

\frac{1 + 1}{12}  \\  =  \frac{2}{12}  \\  =  \frac{1}{6}  \\  = 0.16

6 0
3 years ago
Read 2 more answers
The area of a square is given by the formula A = s^2, where s is the length of the side. What is the area of the square with a s
Juli2301 [7.4K]
Hopefully try is works. Took me a few hrs to figure it out but I think I got it

6 0
2 years ago
Read 2 more answers
Jan’s age is 3 years less than twice Tritt’s age. The sum of their ages is 30. Write an equation that could be used to find the
musickatia [10]

Answer:

x=2y-3

Step-by-step explanation:

x=Jan's age

y=Tritt's age

4 0
3 years ago
Other questions:
  • What is the value of x in the equation below?
    7·2 answers
  • The volume of a cube is 3375 cubic inches. what is the measure of each side of the cube
    9·1 answer
  • The football team has 50 jerseys. There are 15 medium-sized jerseys. What percent of the jerseys are medium sized jerseys?
    6·1 answer
  • calculate the distance between the points!
    10·2 answers
  • GENEROUS DONATIONS WHO EVER ANSWERS FIRST GETS BRAINLIEST!
    14·2 answers
  • What is 78+34 is the same as 80+
    14·1 answer
  • Patricia tiene $80.000 sólo en billetes de $5.000, Camila tiene $60.000 sólo en billetes de $2.000 y Andrea tiene $120.000 sólo
    6·1 answer
  • Please help i’ll give brainliest
    7·1 answer
  • Use the slope formula to find the slope of the line that passes through the points (4, -1) and (3, -1) *
    14·1 answer
  • PLEASE HELP ME ! ITS DUD SOON. ILL GIVE BRAINLIEST I BEG
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!