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
Alchen [17]
3 years ago
9

When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn???t fail), and 24 students got perfect

scores. How many students were in the class?
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0
Okay so we have to figure out what percentage passed first let’s add all the percentages

25%+15%= 40%

Now subtract that from 100%

100%-40%= 60%

So 60% of the class passed

Now let’s use x to represent the total number of people on the class

x•0.6= 24

Now solve for x

x= 40

There are 40 people in the class we figure this out my converting 60% to 0.6 and multiplying it by 40 and getting 24 which is correct
You might be interested in
ebony built a model of an Egyptian pyramid her model measures 0.5 meters along the bottom of one side and 0.3 meters tall what i
geniusboy [140]
I believe the volume is 0.15 since i multiplied, i hope this helped
3 0
3 years ago
Read 2 more answers
I WILL MARK BRAINIEST
Dafna1 [17]

Answer:

U can determine that lines e and f are not parallel

Step-by-step explanation:

By remembering vertical angles, u can find all the angles for the diagram. The top are: 110, 70, 70, 110. The bottom four are: 105, 75, 75, 105. As u can see they're not the same so the lines cannot be parallel

5 0
3 years ago
Approximately 325,563 babies were born in Texas in 1991. What was the average number of births each week?
Svetlanka [38]

Since there are 52 weeks in a year, do 325,563 divided by 52 which is 6,260.826923076923 babies per week

This can round to 6260 babies per week since if you round up, your making up nonexistent babies

6 0
4 years ago
:sobs: help, I’m giving away all my points for this.
Taya2010 [7]

Answer:

Amphibians! In order for water-dwelling animals to adapt to life on land, many new adaptations had to take place. First, they needed to be able to breathe air instead of obtaining oxygen from water. And fins don't work well as legs! They needed to be able to move around well on land.

What group of animals begins its life in the water, but then spends most of its life on land? Amphibians! Amphibians are a group of vertebrates that has adapted to live in both water and on land. Amphibian larvae are born and live in water, and they breathe using gills. The adults live on land for part of the time and breathe both through their skin and with their lungs as their lungs are not sufficient to provide the necessary amount of oxygen.

There are approximately 6,000 species of amphibians. They have many different body types, physiologies, and habitats, ranging from tropical to subarctic regions. Frogs, toads, salamanders , newts, and caecilians are all types of amphibians.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The quadratic formua can be used to solve an equation only if the highest degree in the quation is.....
REY [17]
2

By definition, a quadratic equation has 2 as the highest degree. If a variable is cubed, then the quadratic formula is not applicable.
4 0
3 years ago
Other questions:
  • Solve each data for x: (a) a rectangle has (2x + 1) and (x +2) as length and width. Its area is 77 (b.) a triangle has (2x+2) an
    5·1 answer
  • Is it possible to have an expression that uses brackets without using any parentheses?Explain.
    8·1 answer
  • You can buy 9 cans for green beans at the village market for $4.12. You can buy 7 of the same green beans at Sam's club for $4.2
    12·2 answers
  • What type of triangle would have its orthocenter on the triangle?
    13·1 answer
  • The number 30 can be written as the product 2⋅15. Come up with three new and distinct ways to express the number 30 as the produ
    11·1 answer
  • Sahak pays 11% sales tax on a trumpet that costs 750 dollars. How much does the sales tax add to the purchase price? Answer Choi
    9·1 answer
  • In 2004 kyle was 8 years old . In 2006 kyle was was four year older than his cousin albert. a.how old was albert in 2004. b. in
    7·2 answers
  • If I move up 8 and then move down 8 where am I located?​
    11·2 answers
  • For each of the following expressions, identify the base and the exponent. 2× ,10² , x×
    5·1 answer
  • 5x + 9y = 10<br> -x +2=7/3y
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!