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
Zarrin [17]
3 years ago
8

On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 37 questions correc

t. What was the percent of increase?
Mathematics
1 answer:
Elodia [21]3 years ago
3 0

Answer:

The percent of increase is 32.43%.

Step-by-step explanation:

Take the difference of his new score and the old score.

37-25 = 12

To find the percent change, take that difference and divide it by the new score. Then multiply that answer by 100%.

12/37 = .3243

.3243 x 100% = 32.43%

You might be interested in
How do you convert 15x + 17y = 17 into slope intercept form?
Daniel [21]

Answer:

y = -15/17x + 1

Step-by-step explanation:

15x + 17y = 17

17y = 17 - 15x

y = 1 - 15/17x

y = -15/17x + 1

8 0
3 years ago
Read 2 more answers
If Rachel were to paint her living room alone, it would take 2 hours. Her sister Fran could do the job in 5 hours. How many hour
snow_tiger [21]

Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

Given that

Rachel can paint half of the living room in 1 hour

Fran can paint \frac{1}{5}th part of the living room in 1 hour

Let's assume together they paint the living room in x hours

⇒ together they can paint \frac{1}{x}th part of the living room in 1 hour

By proportions,

⇒\frac{1}{2}+\frac{1}{5}= \frac{1}{x} {using operation proportions and addition}

⇒\frac{7}{10}=\frac{1}{x}

⇒x=\frac{10}{7}        

⇒ together they can paint \frac{7}{10}th part of the living room in 1 hour

It means, Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

Learn more about paint here:

brainly.com/question/15277377

#SPJ9

6 0
1 year ago
What is the perimeter of a parallelogram, if its area is 24 cm^2 and and the distances between the point of intersection of the
Stells [14]
Answer is 20 cm i guess

4 0
3 years ago
I will give brainliest to the correct answers! yep that's YOU
siniylev [52]

Answer: Yes, because the amount of money you save for every beverage bought is constant, and if you buy 0 beverages, you’ll save $0. That means it the situation is graphed, the line produced will be linear and crosses through the origin, which are the requirements for a proportional relationship.

3 0
2 years ago
The scale of a map is 6 km = 4 mi. What is the length on the map if the actual is 40.1<br> miles.
beks73 [17]

Answer:

60.15 km

Step-by-step explanation:

If 6 km on the map represents 4 mi on land, then we'd get the answer by using the relation

6 km -> 4 mi

x km -> 40.1 mi

Where x km is the length on the map we're looking for. If we cross multiply

6 * 40.1 = 4x

240.6 = 4x

x = 240.6/4

x = 60.15 km.

That is the length we're looking for

8 0
3 years ago
Other questions:
  • A new, trendy department store is experiencing exponential growth across America. The chain began in 2004 when it opened 16 stor
    12·1 answer
  • What formal is this: y2-y1/x2-x1?
    5·1 answer
  • Reference angle for 311 degrees
    5·1 answer
  • What expression is equivalent to (3x^2+4x-7)(x-3)​
    13·1 answer
  • Logging out, have a great summer break y’all. See you in 2 months
    8·1 answer
  • Pls answer ill give brainliest to the best
    12·2 answers
  • Ill give brainest i need help please
    7·2 answers
  • Which term describes the place where two planes intersect?
    6·1 answer
  • You have just finished investigating a disease outbreak at a summer picnic party. Out of 100 total attendees, a total of 50 indi
    7·1 answer
  • Given that ∠3≅∠5 .
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!