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
Law Incorporation [45]
3 years ago
15

Anna earned 22 points on her last test. If there were 40 possible points, what was her percent grade?

Mathematics
1 answer:
dimulka [17.4K]3 years ago
6 0

Answer:

55%

Step-by-step explanation:

Since Anna earned 22 points, and there was a total of 40 points, this means that she scored 22 out of 40 points. You can simplify this by dividing the denominator and numerator by 2. Then, you can multiply both the numerator and denominator by 5 to get a number out of 100.

\frac{22}{40} = \frac{11}{20}=\frac{55}{100}*100%=55%

You might be interested in
An electric pump can fill a 45-gallon tub in half an hour.At this rate, how long would it take to fill a 60-gallon tub?
zysi [14]
You can cross multiply to find the answer. Start by setting up your equation:

45/30 = 60/x  (30 represents half an hour)
Next, cross multiply, 45 times x, and 60 times 30: 

45x = 1800  you must isolate the "x" value by using the opposite operation it is involved in. Here we have 45x (x is multiplied to 45) so we must divide 45, which will cancel itself out, leaving us with "x."

What you do on one side of the equation, you must do on the other, so divide 1800 by 45 as well, which will leave you with 40.

Working it out on paper, your equation should now look like this: x=40, which represents the amount of time it will take to fill a 60 gallon tube.

Answer: It will take 40 minutes to fill a 60 gallon tube. 
8 0
3 years ago
Is this correct? formula is displayed on image:
Len [333]

Answer:

no it should bee

\tan( \alpha )  =  \frac{15}{8}

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=2%20%5Cfrac%7B3%7D%7B5%7D%20-%20x%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20%3D%200.75" id="TexFormula1"
ivolga24 [154]
I believe the answer is idk cause I’m not that smart
8 0
3 years ago
Read 2 more answers
. Asking 100 students at a large university for their opinions on campus life is an example of measuring a _____.
Slav-nsk [51]

Answer:

B

Step-by-step explanation:

I am assuming that the university has much more than 100 students so 100 people is just a small sample.

3 0
3 years ago
Read 2 more answers
Thomas drew a line of best fit for the scatter plot as shown. Enter an equation for the line of best fit in slope-intercept form
juin [17]

Answer:

Equation of line best fits the scatter plot is y = -\frac{30}{7} x + 108

Step-by-step explanation:

Let the equation of line be y = mx + c

where m = slope of line and c is the intercept on y -axis

from the graph intercept on y-axis is 108

and the slope of line is given by m = \frac{y_2 - y_1}{x_2 - x_1} where (x_2,y_2) and (x_1,y_1) is the points on line

let, points be (4,96) and (18,36)

on calculating this m = \frac{y_2 - y_1}{x_2 - x_1} = -\frac{30}{7}

Therefore equation of line best fits the scatter plot is y = -\frac{30}{7} x + 108

4 0
3 years ago
Other questions:
  • A picture is 6 inches longer than it is wide and has an area of 167
    10·1 answer
  • The buyer for an electronics store wants to estimate the proportion of defective wireless game controllers in a shipment of 5,00
    14·1 answer
  • How to subtract 4/5 and 3/10 in simplest form
    5·2 answers
  • Can anyone help me ? Which ones do I click ?
    8·1 answer
  • What is the value of x ?enter your answer as a decimal in the box
    5·1 answer
  • Find the vertex of the graph of the function. f(x) = 3x^2 - 18x + 24
    10·2 answers
  • Kevin and randy my use have a jar containing 64 coins all of which are either quarters or nickels. The total value of the coins
    15·1 answer
  • The point (-3, 2) lines on a circle whose equation is (x + 3)2 + ( + 1)2 = r2. Which of
    8·1 answer
  • Giving brainliest please help with math
    14·1 answer
  • Help me plz..
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!