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Nutka1998 [239]
3 years ago
6

In a college 40% of the students take physics while 30% take calculus. 10% also take both. If there are 40 students how many tak

e neither?
Mathematics
1 answer:
dolphi86 [110]3 years ago
8 0
8 people  take neither classes because 20 percent of 40 is 8 
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Wilson began watering his garden with a watering can that was completely full. The amount of water in the can as Wilson was wate
givi [52]

Answer:

Option B is correct, i.e. The amount of water originally in Wilson's can was 2.5 gallons.

Step-by-step explanation:

Given is the graph of Amount of water (in gallons) v/s Time (in seconds).

It is a linear graph whose general equation is given as follows:-

y=mx+b.

Where y = Amount of water, x = Time, m = slope, b = y-intercept (when time is zero).

Finding slope of line, m = (2.3 - 2.5)/(1 - 0) = -0.2 gallons per second.

Finding y-intercept of line, b = 2.5 gallons (at t=0).

Hence, option B is correct, i.e. The amount of water originally in Wilson's can was 2.5 gallons.

6 0
3 years ago
Read 2 more answers
Help me with this question
mart [117]

Answer:

40 in.

Step-by-step explanation:

hope it helps

3 0
3 years ago
The equation Y equals 4/10 X describes the number of kilometers y that a van travels in x minutes. What is the constant speed of
Mekhanik [1.2K]

Answer:

\frac{4}{10}=0.4 kilometers per hour.

Step-by-step explanation:

We have been given an y=\frac{4}{10}x, which describes the number of kilometers y that a van travels in x minutes. We are asked to to find the constant speed of the van in terms of hours.

We can see that van travel \frac{4}{10}x kilometers in x hours. To find the constant speed of van, we will substitute x=1 in our given equation as:

y=\frac{4}{10}(1)

y=\frac{4}{10}

Since van travels \frac{4}{10} kilometers in one hour, therefore, constant speed of van is \frac{4}{10} kilometer per hour or 0.4 kilometers per hour.

3 0
3 years ago
How many terms are in this expression? -3x +1 +4y-7*<br><br> 6<br> 4<br> 2
dybincka [34]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
In a fishing competition Johannes and Peter together caught 48 fish.
Alenkasestr [34]

John caught 18 fishes and Peter caught 30 fishes.

Step-by-step explanation:

Let,

Fishes caught by John = x

Fishes caught by peter  = y

Total fishes caught = 48

According to given statement;

x+y=48    Eqn 1

x=\frac{3}{5}y   Eqn 2

Putting  Eqn 2 in Eqn 1;

\frac{3}{5}y+y=48

Multiplying each term by 5;

5*\frac{3}{5}y+5*y=48*5\\3y+5y=240\\8y=240

Dividing both sides by 8

\frac{8y}{8}=\frac{240}{8}\\y=30

Putting y=30 in Eqn 1

x+30=48\\x=48-30\\x=18

John caught 18 fishes and Peter caught 30 fishes.

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/11007026
  • brainly.com/question/11207748

#LearnwithBrainly

4 0
2 years ago
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