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
SpyIntel [72]
3 years ago
9

A Mathematics competition consists of 30 multiple-choice questions. A

Mathematics
1 answer:
harkovskaia [24]3 years ago
3 0

Answer:

16

Step-by-step explanation:

let "x" be the number of correct questions and 37-x be the wrong questions,

4x-1(37-x)=44

4x-37+x=44

5x=81

x=16.2

hence,16 is the answer

You might be interested in
A ball is tossed up in the air at an initial rate of 50 ft/sec from 5 ft off the ground.
Fofino [41]

Answer with Step-by-step explanation:

Since we have given that

Initial velocity = 50 ft/sec = v_0

Initial height of ball = 5 feet = h_0

a. What type of function models the height (ℎ, in feet) of the ball after tt seconds?

As we know the function for height h with respect to time 't'.

h(t)=-16t^2+v_0t+h_0\\\\h(t)=-16t^2+50t+5

b. Explain what is happening to the height of the ball as it travels over a period of time (in tt seconds).

What function models the height, ℎ (in feet), of the ball over a period of time (in tt seconds)?

if it travels over a period of time then time becomes continuous interval . so it will use integration over a period of time

Our function becomes,

h(t)=\int\limits^t_0 {-16t^2+50t+5} \, dt

3 0
3 years ago
Katie earns $12 an hour. Which graph represents the relationship between the number of hours Katie works and her earnings,
klasskru [66]

Answer:

first top left graph? 12×4 is 48 so that puts it about right

7 0
3 years ago
Read 2 more answers
Electroboy has been charged up to +96 C which of course causes an electric field to emanate around him. An electroball charged t
inessss [21]

Answer:

static electricty

Step-by-step explanation:

it is preserved charge

3 0
3 years ago
Solve for x in the equation x + 10 = 15.
Vera_Pavlovna [14]
X+10=15

Isolate x by subtracting 10 from both sides
x+10-10=15-10
x=5

Final answer: B

Check by plugging the value in
5+10=15
True
7 0
3 years ago
Read 2 more answers
A triangle has side lengths of x, x+11, and 3x+5.
horrorfan [7]

Answer:

The answer is 5X+16

Step-by-step explanation:

The formula for perimeter of a triangle is a+b+c.

meaning we are adding up everything.

That is

(x)+(x+11)+(3x+5).

collect like terms.

and u end up getting

5x+16

3 0
3 years ago
Other questions:
  • The sum of two numbers is seventeen. Three less than three times the smaller is equal to the larger
    8·1 answer
  • A ball is thrown from a height of 80 feet with an initial downward velocity of 4/fts. The ball's height h (in feet) after t seco
    6·1 answer
  • Solve the equation for x, where x is a real number (5 points): <br> -11x^2 + 5x - 3 = 0
    9·1 answer
  • What are the common factors of 9 and 25
    15·1 answer
  • If H^1 (x) is the inverse of H (x), what is the value of H^-1 (H (x))?
    11·2 answers
  • Please help I am being timed
    12·1 answer
  • HELP PLZZ
    5·2 answers
  • 3/4(-10+2/5) please answer asap
    8·1 answer
  • Multiply.
    10·1 answer
  • F(x)=2x+1/x-1 then f^-1(1)​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!