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
What is the value of x?<br> A.38<br> B. 59<br> C. 83<br> D. 96
Over [174]

Answer:

Ans is 59

Step-by-step explanation:

46 +51+y=180 (sum of triangle)

y=180-46-51

y=83

now,

83+x+38=180

x=180-83-38

x=59

value of x is 59

6 0
3 years ago
A research scientist reports that mice will live an average of 40 months when their diets are sharply restricted and then enrich
natka813 [3]
Can you make this question clearer to read?
4 0
3 years ago
If DE = 37 cm and EF = 16 cm, then what are the possible lengths for DF so that DE,EF, and DF can form a triangle? Explain your
chubhunter [2.5K]

Answer:

The length of DF must be between 21 and 53.

Step-by-step explanation:

In a triangle, the length of two sides added together must exceed the length of the 3rd side. So, since EF is the shortest of the two givens, we know that EF + DF must be greater than DE. So we can plug in these numbers to find the minimum.

EF + DF > DE

16 + DF > 37

DF > 21

Now, for the upper maximum, we know that the two given lengths must be greater than the length of DF. So again, we can solve for the maximum using the amounts.

DE + EF > DF

37 + 16 > DF

53 > DF

With these two in mind, we know that DF must be between 21 and 53

4 0
3 years ago
What is equivalent to 6/25. A.0.20 B.0.22 C. 0.24 D. None
padilas [110]

Answer:

C. .024

Step-by-step explanation:

You multiply 25 by 4 to get 100 and then you multiply 6 by 4 to get twenty four. After that you divide both numbers by one hundred and you get C

5 0
3 years ago
You deposit $4300 in an account that earns 2% per year simple interest. The equation that represents this situation is: A(n) = 4
Likurg_2 [28]

Answer: $4902

Step-by-step explanation:

Amount = P (1 + rt)

= 4300 (1 + .02 * 7)

= 4300 (1 + .14)

= 4300 (1.14)

= 4902

3 0
3 years ago
Other questions:
  • 6x-3x+4-2x infinitely number of solutions
    12·1 answer
  • Need help with adding subtracting decimals.. . In this unit, you learned about fractions that can be written as terminating deci
    7·1 answer
  • basically I'm suppose to write a verbal description for for each alegebraic expression below can you guys help me and explain fo
    10·1 answer
  • Suppose F and G are continuously∗ differentiable functions defined on [a, b] such that F0(x) = G0(x) for all x ∈ [a, b]. Using t
    5·1 answer
  • Solve: 6(y-5) = 2(10 + 3y)
    5·2 answers
  • Need help with inscribed angles If M
    6·1 answer
  • The measure of an angle formed by _blank_ is half the sum of the measures of the intercepted arcs
    14·1 answer
  • Select the expression equivalent to (5.2x + 4.8) − (-6x − 2)
    13·1 answer
  • Look at the system of equations below.
    13·1 answer
  • Find the difference: -2-6
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!