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
Amiraneli [1.4K]
2 years ago
7

Here are the test scores for 15 students in Mr. M's class.

Mathematics
1 answer:
jekas [21]2 years ago
6 0
60%. You count how many total (15) and then how many got below a 90 (9) and then divide 9 by 15.
You might be interested in
The table shows how much a store charges for certain numbers of pencils. Number of pencils (p) Cost (c) 4 $0.72 7 $1.26 12 $2.16
Arada [10]
Find the rate of change, (y2-y1)/(x2-x1), from the data given...

(2.16-1.26)/(12-7)=0.18

(1.26-0.72)/(7-4)=0.18

Since the rate is constant, this is a linear equation of the form y=mx+b.  Furthermore, since 0 pencils cost 0, b=0, so the cost of the pencils is simply the number of pencils times 18 cents...

c(p)=0.18p  (cost with respect to pencils is 0.18 times the number of pencils)
7 0
3 years ago
A board is cut so that its length is changed from 8 feet to 6.5 feet. What is the percent of change in length? Round your answer
Schach [20]

it went from 8 to 6.5, namely 8 - 6.5 = 1.5.


if we take the 8 to be the 100%, what is 1.5 off of it in percentage?


\bf \begin{array}{ccll}amount&\%\\\cline{1-2}8&100\\1.5&x\end{array}\implies \cfrac{8}{1.5}=\cfrac{100}{x}\implies x=\cfrac{1.5\cdot 100}{8}\implies x=18.75


well, we can round that up to 18.8%, however since it's a subtraction from the board, we can say is -18.8%, a negative percent, because is a percent that was taken out of it.

3 0
3 years ago
Need help please and thank you
Norma-Jean [14]

Answer:

The length of XZ is 15 miles.

Step-by-step explanation:

Use Pythagorean Theorem to solve this problem

9² + 12² = C²      Simplify the squares

81 + 144 = C²      Add on the left side

225 = C²             Take the square root of both sides

15 = C

If this answer is correct, please make me Brainliest!

4 0
3 years ago
6) Jasmine created a playlist on her cell phone. The
Brilliant_brown [7]
Chilee i DONT know I’m just trying to get these points
6 0
3 years ago
Suppose the bank installs nine alarms. What is the expected number of alarms that will detect a burglar?
Harrizon [31]
The answer is 6 because
3 0
3 years ago
Other questions:
  • which measure would you report to describe the diffrences between the most electricity used in 1 month and the least
    5·1 answer
  • Paul can purchase 3 muffins for $1.35. At this rate what is the cost of 10 muffins
    13·2 answers
  • What is the approximate area of the shaded region?
    13·2 answers
  • Divide and simplify. (Type a whole number or a simplified​ fraction.)<br> 15/16 divided by 3/14
    11·2 answers
  • You have piano lessons every fifth day and cooking classes every sixth day. Today you have both lessons. In how many days will y
    14·1 answer
  • Just two more thanks for all the help thus far
    14·1 answer
  • Cuál es el valor de g(2.5)
    9·1 answer
  • Which set is the solution set for the given inequality?
    7·1 answer
  • The frequency of G3 is 196.00 Hz.
    15·1 answer
  • There are 9 boys and 11 girls in a math class. Which ratios compare the number of girls to the number of
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!