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
Inessa [10]
3 years ago
5

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If xis

Mathematics
1 answer:
Luba_88 [7]3 years ago
7 0

x+y=24

3x + 5y = 100

Rewrite the first equation: x = 24-y

Replace x in the second equation and solve:

3(24-y) +5y = 100

72-3y +5y = 100

72 +2y = 100

2y = 28

y = 14

Y is the number of 5 point questions, so there are 14 5 point questions.

The answer would be:

The test contains 10 three-point questions and 14 five-point questions.

You might be interested in
Can somebody please help me with 1 and 2 and explain why that’s the answer thanks
Masteriza [31]

Answer:

1) A

2) C

Step-by-step explanation:

The range is all real y values, in this case it includes zero and continues going downward towards negative infinity.

The domain is all real x values. In this case it includes zero and continues increasing to positive infinity.

Hope this helps!

5 0
3 years ago
What is 1000 to the tenth power
Aliun [14]
The answer to your equation is 1,000^10
Have a good day/night
5 0
3 years ago
A parallelogram has coordinates A(1, 1), B(5, 4), C(7, 1), and D(3, -2). What are the coordinates of parallelogram A′B′C′D′ afte
saul85 [17]

Hey there! I'm happy to help!

First, we need to rotate our points 180° about the origin. To find the coordinates after such a rotation, we simply find the negative version of each number in the ordered pair, which can be written as (x,y)⇒(-x,-y).

Let's convert this below

A: (1,1)⇒(-1,-1)

B: (5,4)⇒(-5,-4)

C: (7,1)⇒(-7,-1)

D: (3,-2)⇒(-3,2)

Now, we need to translate these new points five units to the right and one unit down. This means we will add 5 to our x-value and subtract 1 from our y-value. This will look like (x,y)⇒(x+5,y-1). Let's do this below.

A: (-1,-1)⇒(4,-2)

B: (-5,-4)⇒(0,-5)

C: (-7,-1)⇒(-2,-2)

D: (-3,2)⇒(2,1)

Therefore, this new parallelogram has coordinates of A'(4,-2), B'(0,-5), C'(-2,-2), and D'(2,1)

Now you know how to find the coordinates of translated figures! Have a wonderful day! :D

5 0
3 years ago
A theater wants to build movable steps that they can use to go on and off the stage. They want the steps to have enough space in
nataly862011 [7]

Answer:

Step-by-step explanation:

Do you smart to party

8 0
4 years ago
Read 2 more answers
A hose fills a 10,000-gallon swimming pool at a rate of 10 gallons per minute. what is the domain and range?
defon

Answer:

Domain: 0 minutes to time it takes to fill. Range: 0 to a 10,000 gallons

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Complete the solution of the equation. Find the<br>value of y when x equals -5.<br>-3x – 3y = -6​
    6·1 answer
  • A diagonal of a parallelogram forms 25° and 35° angles with sides of parallelogram. Find the angles of the parallelogram.
    5·1 answer
  • Whats the diffrence of 2 2/3 - 1 2/5 write answer in simplest form
    10·2 answers
  • Ten times the sum of a number and 9
    13·2 answers
  • This is a problem that I have to solve with matrixes, Please show me all of the work. I will award brainliest.
    7·1 answer
  • At a local department store, pants have been reduced to $12. This price is at 75% of the original price for pants. Given this, w
    13·1 answer
  • Can you please help me?​
    9·2 answers
  • The vertices of a rectangle are located at (1, 2), (5,0), (2, -6), and (-2,-4). What is the area of the rectangle?
    15·1 answer
  • Simplify<br>answer it<br>b)​
    7·2 answers
  • Paco says that the solution to 2/5x - 1 = 9 is x = 4. Do you agree? Explain.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!