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
madam [21]
3 years ago
14

An Algebra I test contains 30 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The to

tal test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points.
Mathematics
1 answer:
Roman55 [17]3 years ago
6 0

Answer:

Step-by-step explanation:

f+t=40 and 4f+2t=100

4f+2t=120

4f+2t=100

2t=20

t=10

So f=20

You might be interested in
Can you solve (4x-3)/(x+2)+(15)/(x-3)
Murljashka [212]
Please see the pic, I'd solved in it.

8 0
3 years ago
Read 2 more answers
PLEASE HELP ME ANSWER THIS!!! PLEASE
Oksanka [162]
29 degrees is your answer :)
4 0
3 years ago
Read 2 more answers
Which equation has the steepest parabola?
ICE Princess25 [194]

Given:

The equations of parabolas in the options.

To find:

The steepest parabola.

Solution:

We know that, if a parabola is defined as

(y-k)=n(x-h)^2

Then, the greater absolute value of n, the steeper the parabola.

It can be written as

\dfrac{1}{n}(y-k)=(x-h)^2

p(y-k)=(x-h)^2

where p=\dfrac{1}{n}, the smaller absolute value of p, the steeper the parabola.

Now, find the value of |p| for eac equation

For option A, |-0.5|=0.5

For option B, |5|=5

For option C, |8|=8

For option D, |-10|=10

Since, the equation is option A has smallest value of |p|, therefore, the equation (x+2)^2=-0.5(y+3) represents the steepest parabola.

Hence, the correct option is A.

7 0
2 years ago
8 - 10 is the same as
liubo4ka [24]
B. 8+(-10)


Explanation:

8-10 is -2
If you try all the answers, 8+-10=-2
6 0
3 years ago
Do. Had an album that holds 900 photos. Each page of albums holds 9 photos. If 37% of the album is empty, how many pages are fil
Xelga [282]

Answer:

63 pages are filled with photos.

Step-by-step explanation:

900 photos with 9 photos a page 900/9=100

100 pages

37% of 100 is 37

100-37 is 63

7 0
3 years ago
Other questions:
  • A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who will
    7·2 answers
  • Solve the following system of equations:
    13·1 answer
  • I need help badly... consider the rectangular prism with a length 3 cm, width 6 cm, and height 10 cm. If one of the dimensions i
    11·2 answers
  • 6=-w/8 please solve for w
    10·1 answer
  • Three divided by x equals .75 what is x
    10·1 answer
  • What is the solution?
    7·2 answers
  • Hi, please help!
    7·2 answers
  • The company is going to choose three rows in each section to win the hats. There are
    9·1 answer
  • X is partly constant, and partly varies as y. When y= 2 , x = 30 and when y = 6, x = 50
    15·2 answers
  • HHHHHHEEELLLLPPP MMMEEE
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!