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
Snowcat [4.5K]
2 years ago
15

In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

Mathematics
2 answers:
N76 [4]2 years ago
5 0

Answer:

20 students offered both physics and biology.

Step-by-step explanation:

n(Total) = 50

n(Physics) = 40

n(Biology) = 30

Let n(Physics and Biology) = x

n(Physics only) = 40 -x

n(Biology only) = 30 - x

40 - x + 30 - x + x = 50

70 - x = 50

x = 20

harkovskaia [24]2 years ago
3 0
20 students are in biology and in physics
You might be interested in
It cost Benjamin $1.35 to send 9 text messages how much would it cost to send 118 text messages
Allushta [10]

Answer:

it costs $17.7

Step-by-step explanation:

1.35/9 is 0.15

0.15 * 118 = 17.7

3 0
2 years ago
A rectangle prism has a height of 4 millimeters and width 5 millimeters. The total surface area is 166 square millimeters, what
Zolol [24]
The answer is 7, 2(7x5) + 2(4x7) + 2(5x4) = 166
7 0
3 years ago
Find p((5 on green die and 3 on red die) or (3 on green die and 5 on red die)). (enter your answer as a fraction.)
Margarita [4]
<span>1/72 This is because the odds that, on two dice, two specific numbers get rolled is 1/36. But since the number has to be rolled on a specific dice, that doubles the fraction.</span>
6 0
2 years ago
A right triangle has a leg of 15 feet and a second leg of 24 feet. Find the length of the hypotenuse
Lorico [155]

Answer:

9

Step-by-step explanation:

-

4 0
2 years ago
Determine whether the given procedure results in a binomial distribution​ (or a distribution that can be treated as​ binomial).
timofeeve [1]

Answer:

The procedure results in a binomial distribution

Step-by-step explanation:

If all 120 couples used the YSORT method, it is fair to assume that the probability of a baby being a boy or a girl are constant through all trials (120 couples). Assuming 120 randomly selected couples, there is a fixed number of independent trials. Finally, since the babies can only be a boy or a girl, the binary condition is satisfied and thus, the distribution is binomial

3 0
2 years ago
Other questions:
  • A blue billiard ball with mass m crashes into a red billiard ball with the same mass that is at rest. The collision results in t
    15·1 answer
  • Please help!!! I keep asking the same question !!!!! An architect is creating a scale drawing of a school computer lab. The leng
    12·2 answers
  • What is 375 times 54 <br> Answer in 1 min
    7·1 answer
  • The gardening club kept track of how many seeds each student planted. How many students planted more than two seeds?
    9·1 answer
  • Mr. T's Tea store has two kinds of tea. Tea A costs $9 per pound and Tea B cost $6 per pound. How many pounds of each should be
    8·1 answer
  • Can I please get some help with this?
    9·1 answer
  • Use 3.14 for π to find 2πr when r is 5
    8·1 answer
  • 6<br> 9<br> 18<br><br> What number<br> comes next in<br> the above<br> sequence?
    5·2 answers
  • 9. Samantha had $30 to spend on five pens. After buying them he had $4.75. How much did each pen cost? WILL GIVE BRAINLIEST AND
    15·1 answer
  • Which equation represents this statement?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!