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
Helen [10]
3 years ago
5

A test is worth a total of 150 points and contains 70 questions. Some of the questions are worth 2 points and some are worth 4 p

oints.
The test has
questions worth 2 points and
questions worth 4 points.

Emma answered a certain number of questions correctly and scored 100 points. If she answered 46 questions worth 2 points correctly, the number of questions worth 4 points she answered correctly is
.
Mathematics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer:

46 \times 2 = 92 \: points \\ 100 - 92 = 8 \: points \\ 4 \times 2 = 8 \\ two \: of \: the \: 4 \: points \: questions \:  \\ were \: answered \: correctly

You might be interested in
Classify the following polynomials according to the number of terms. Combine any like terms first.
11Alexandr11 [23.1K]

1) Combining like terms, we get x^2 + 5x, which is a binomial.

2) Combining like terms, we get x^3 + 3x^2, which is a binomial.

3) Combining like terms, we get 4x^3 + x^2 - x, which is a trinomial.

4) I can't answer this because there's an asterisk in place of the exponent.

3 0
2 years ago
The perimeter of a rectangular field is 60 meters. Its area is 200 square meters. Find its dimensions.
Vanyuwa [196]

Answer:

20 m by 10 m

Step-by-step explanation:

let w be width and l be length , then

2(l + w) = 60 ( divide both sides by 2 )

l + w = 30 ( subtract w from both sides )

l = 30 - w → (1)

lw = 200 → (2)

Substitute l = 30 - w into (2)

w(30 - w) = 200 ← distribute parenthesis on left side

30w - w² = 200 ( subtract 200 from both sides )

30w - w² - 200 = 0 ( multiply through by - 1 )

w² - 30w + 200 = 0 ← in standard form

(w - 10)(w - 20) = 0 ← in factored form

Equate each factor to zero and solve for w

w - 10 = 0 ⇒ w = 10

w - 20 = 0 ⇒ w = 20

Substitute these values into (1)

l = 30 - 10 = 20

l = 30 - 20 = 10

dimensions of field is 20 m by 10 m

4 0
2 years ago
Read 2 more answers
Tell whether the angles are adjacent or vertical. Then find the value of x.
Charra [1.4K]

Answer:

Adjacent. x is 100.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the result when the number 79 is decreased by 17%?
trapecia [35]

Answer:

65.57 should be the correct answer!

Step-by-step explanation:

Here is the whole work I did, hope this helps!

100 - 17 = 83

79 x 0.83 = 65.57

8 0
3 years ago
Read 2 more answers
What is the best estimate for the quotient 5,397 divided by 62
shusha [124]
The best, closest quotient would be 87.
4 0
3 years ago
Read 2 more answers
Other questions:
  • √9a^2 + √49b - a + √b<br><br><br> a. 2b + 8 √a<br><br> b. 2a - 8 √b<br><br> c. 2a + 8 √b
    14·1 answer
  • How do I express a fraction as a percent?<br><br> Ex: 29 over 50
    10·1 answer
  • Y=x+5 what is the slope?
    11·2 answers
  • 62,591 + 7.1 X 10-2 in standard notations ​
    14·2 answers
  • ASAP PLEASE
    8·2 answers
  • The third one ^^
    14·1 answer
  • List the constant(s) in 2ab + 8 + c - 10
    7·1 answer
  • DUE TMR HELP PLSSS
    6·1 answer
  • 5/3 divided by (-6/7).<br>Write your answer in simplest form.<br><br>Please please Help me!! ​
    6·2 answers
  • Santa's favorite snack used to cost $1.45 a box. If the cost has gone up 15%, what's the price now?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!