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AnnZ [28]
3 years ago
15

Can someone help me with these questions

Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

Answer: help your self

Step-by-step explanation: ok boomer

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25 mice were involved in a biology experiment involving exposure to chemicals found in ciggarette smoke. 15 developed at least 1
MAVERICK [17]

based on the number of mice that took part in the experiment, the total number of mice that had at least one effect is 20 mice.

<h3>how many mice had a health effect?</h3>

15 mice had at least 1 tumor while 4 mice had both a tumor and respiratory failure.

the number of mice with just a tumor is:

= 15 - 4

= 11 mice

the number of mice with respiratory failure alone is:

= 9 - 4

= 5 mice

the mice that had at least one symptom is:

= 11 + 5 + 4 mice with both

= 20 mice

question is:

what are the number of mice with at least one effect?

find out more on effects of smoking at brainly.com/question/12135800.

#SPJ1

3 0
1 year ago
Choose the answer.
myrzilka [38]
**4/5** is equal to .8, so 4/5 is the answer. to check, multiply .8 x 5 = 4
4 0
3 years ago
Read 2 more answers
The area of a triangle is 20 square feet.
sdas [7]
Since the equation is A= 1/2 times base times height, I did the base as 8 and the height as 5.
8 0
3 years ago
A bag contains 5 red marbles, 8 blue marbles and 4 green marbles. If three marbles are drawn out of the bag, what is the probabi
Zarrin [17]

Step-by-step explanation:

step 1. let's assume they are drawn without replacement and probability is denoted P.

step 3. P = (5/17)(4/16)(3/15)

step 4. P = (5/17)(1/4)(1/5)

step 5. P = 5/340

step 6. P = 1/68 = 0.0147 = 1.5%

6 0
2 years ago
Find the solution of this system of equations.
Evgesh-ka [11]

Answer:

Step-by-step explanation:

x + 2y = 8

x - y = 2

x + 2y = 8

-x + y = -2

3y = 6

y = 2

x - 2 = 2

x = 4

(4, 2)

8 0
2 years ago
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