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
Digiron [165]
3 years ago
5

The mean of Julie's first five quiz scores is 77 what score does Julie need on the six quiz to raise her averaged 80

Mathematics
2 answers:
garik1379 [7]3 years ago
6 0
She would need about a 90 or so.
olya-2409 [2.1K]3 years ago
6 0
The answer is 83... Since we aren't given the rest of the numbers, we use 77 and we use guess and check till we get to 83. 77 + 83=160 divided by 2 is her desired average of 80...
You might be interested in
What is the solution of
loris [4]

Answer:

x = -1/2

Step-by-step explanation:

1-3x = x+3

Add 3x to each side

1-3x+3x = x+3x+3

1 = 4x+3

Subtract 3 from each side

1-3 = 4x+3-3

-2 = 4x

Divide each side by 4

-2/4 = 4x/4

-1/2 =x

5 0
2 years ago
Read 2 more answers
A rope of length 18 feet is arranged in the shape of a sector of a circle with central angle O radians, as shown in the
creativ13 [48]

Answer:

A(\theta)=\frac{162 \theta}{(\theta+2)^2}

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Let

r ---> the radius of the sector

s ---> the arc length of sector

Find the radius r

we know that

2r+s=18

s=r \theta

2r+r \theta=18

solve for r

r=\frac{18}{2+\theta}

step 2

Find the value of s

s=r \theta

substitute the value of r

s=\frac{18}{2+\theta}\theta

step 3

we know that

The area of complete circle is equal to

A=\pi r^{2}

The complete circle subtends a central angle of 2π radians

so

using proportion find the area of the sector by a central angle of angle theta

Let

A ---> the area of sector with central angle theta

\frac{\pi r^{2} }{2\pi}=\frac{A}{\theta} \\\\A=\frac{r^2\theta}{2}

substitute the value of r

A=\frac{(\frac{18}{2+\theta})^2\theta}{2}

A=\frac{162 \theta}{(\theta+2)^2}

Convert to function notation

A(\theta)=\frac{162 \theta}{(\theta+2)^2}

6 0
3 years ago
Find the values of x and y
vitfil [10]

Hi there!

\large\boxed{y = 12, x = 3}

The two trapezoids are similar, so we can determine a common scale factor:

OL/UR = NM/TS

9/3 = 6/2

3 = 3

Trapezoid ONML is 3x larger than UTSR, so:

RS = 4, LM = y

3RS = LM

3 · 4 = y = 12.

Find x using the same method:

3UT = ON

3(2x+1) = 4x + 9

6x + 3 = 4x + 9

2x = 6

x = 3.

4 0
2 years ago
Simplify the quotient (4.5 x 10^3)/(9 x 10^7 ). Write your answer in scientific notation. Show your work.
marishachu [46]
To answer the problem above, divide the numerical portion and the exponential portion of the given numbers. 4.5 divided by 9 is 0.5. Furthermore, 10^3 divided by 10^7 is 10^-4. The answer is 
                    
                                            0.5 x 10^-4

This may still be written in a standard form,
 
                                               5 x 10^-5

Thus, the answer is <em>5 x 10^-5</em>. 
                                    
5 0
3 years ago
Read 2 more answers
HELP PLEASE! In ΔABC, m∠A = 43°, m∠B = 62°, and BC = 22 in. What is AB to the nearest tenth of an inch?
sdas [7]

Answer:

I think its 14.1 I hope you get it right! :)

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Jamel is asked to create triangles using three of four given sticks. The sticks measure 3 in., 6 in., 7 in., and 8 in. He create
    10·2 answers
  • Please answer asap. Will mark brainliest!!!
    12·1 answer
  • Is the quotient 2.7 ÷ 3 greater than or less than 1? Explain plzz!!!
    9·1 answer
  • How do I do this question? <br> Find the area of the patio below
    13·2 answers
  • Ben is buying a tiny house. He will borrow $23,000 at a rate of 3% per year for 4 years. If the interest is compounded annually,
    6·1 answer
  • It’s question number 46 I need help on thanks
    13·2 answers
  • HELP PLZZ i need to find slope
    15·2 answers
  • Which is the smallest integer? - 11;53; 33; -13; -7
    8·2 answers
  • Filled with jelly beans. If the jar has a<br> 15% are purple How many purple beans are they ?
    15·1 answer
  • How do you graph 34,-8?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!