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
max2010maxim [7]
3 years ago
10

The test scores you end up having in geometry class are 81 and 87. What possible scores can you earn on your next test to have a

test average between 84 and 89​?
Mathematics
2 answers:
Zigmanuir [339]3 years ago
4 0

Answer:

88, 89, 90, 91, 92? idrk

tensa zangetsu [6.8K]3 years ago
4 0

Answer:

A score between 84 and 99

Step-by-step explanation:

First, let's solve for what you would need to score on your next test to have an average of 84:

(81 + 87 + x)/3 = 84

     (168 + x)/3 = 84

          168 + x = 252

                    x = 84

Next, let's solve for what you would need to score on your next test to have an average of 89:

(81 + 87 + x)/3 = 89

     (168 + x)/3 = 89

          168 + x = 267

                    x = 99

That means you would have to earn a score between 84 and 99.

I hope this helped you, and if it did, a brainliest would be appreciated :)

You might be interested in
Please help me answer this.
Mariulka [41]

Answer:

(a) 3

Step-by-step explanation:

Calculate the slope m of the line given using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0,3) and (x₂, y₂ ) = (3, 2)

m = \frac{2-3}{3-0} = - \frac{1}{3}

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{1}{3} } = 3 → (a)


5 0
3 years ago
What is an equation of the line that passes through the points (4,4) and (8.1)
andrey2020 [161]

Answer:

  • y = - 3/4x + 7

Step-by-step explanation:

<u>Use both points and find the slope:</u>

  • m = (1 - 4) / (8 - 4) = - 3/4

<u>Find the line, using point-slope form and point (4, 4):</u>

  • y - 4 = - 3/4(x - 4)
  • y - 4 = - 3/4x + 3
  • y = - 3/4x + 7
5 0
2 years ago
In 1-5, given: Two similar cylinders with heights of 8 and 5 respectively.
lana66690 [7]

Answer:

1. The ratio of their diameters is 8/5 = 8 : 5

2. The ratio of their surface area is (8/5)²

3. The ratio of their volume is (8/5)³

4.The area of the base of the larger cylinder is 128 cm²

Step-by-step explanation:

Given that the two cylinders are similar, we have;

Two cylinders are similar when the ratio of their heights is equal to the ratio of their radii

Therefore, we have;

1. The ratio of the height of the two cylinders = 8/5 = The radio of their radii = r₁/r₂

The ratio of their diameter = D₁/D₂ = 2·r₁/2·r₂ = r₁/r₂ = 8/5

The ratio of their diameters D₁/D₂ = 8/5 = 8 : 5

2. The surface area of the cylinders = 2·π·r·h + 2·π·r²

Therefore, we have;

(2·π·r₁·h₁ + 2·π·r₁²)/(2·π·r₂·h₂ + 2·π·r₂²) = (r₁·h₁ + r₁²)/(r₂·h₂ + r₂²)

h₁ = h₂ × 8/5

r₁ = r₂ × 8/5

= (8/5)²(r₂·h₂ + r₂²)/(r₂·h₂ + r₂²)  = (8/5)²

The ratio of their surface area = (8/5)²

3. The volume of the cylinder = π·r²·h

∴ The ratio of the volume = (π·r₁²·h₁)/(π·r₂²·h₂) = (8/5)³ × (π·r₂²·h₂)/(π·r₂²·h₂) = (8/5)³

The ratio of their volume = (8/5)³

4. The ratio of the area of the base of the larger cylinder to the area of the base of the smaller cylinder is (8/5)²

Therefore if the area of the base of the smaller cylinder is 50 cm², the area of the base of the larger cylinder = 50 cm² × (8/5)²  = 128 cm²

7 0
2 years ago
The bakery sells 7 different types of bagels. Melissa orders one type of bagel. Then Julio orders a different type of bagel. How
kaheart [24]
I think you square the number as many times as there are people so that is,. 7*7=49
3 0
3 years ago
Please help ill give brainliest and follow my insta lol&gt; widowmaker2007
Karo-lina-s [1.5K]
Do u follo back tho lol
7 0
3 years ago
Other questions:
  • Veronica is saving money to buy a saddle for her horse that cost $175. She plans to save $10 the first month and then increases
    5·1 answer
  • Three times a number is the same as 28 more than 6 times the number. Find the number. If n is "the number," which equation could
    15·2 answers
  • What is the value of x?
    10·2 answers
  • 500 as a integer is?
    15·1 answer
  • 3. Part way through his party, Patrick found that there was 5 2/3 pizzas left. If his friends eat 3/4 of the pizzas, how much of
    5·1 answer
  • The number of students treated per month has been recorded for the last 60 months. Which between 100 and 200 students were treat
    8·1 answer
  • What is a simpler form of <br> 5n(3n³−n²+8) ?
    12·1 answer
  • X-3 = 4 pls help<br> And thanks :)
    5·1 answer
  • Number 4 is 10x24.9<br><br><br> Help me plz and PLZ NO LINKS
    8·1 answer
  • Help me I really need help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!