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maxonik [38]
3 years ago
6

A class has 20 students. If the teacher is randomly putting students in groups of 3 to complete a project, what is the probabili

ty that three students who are best friends will be together? 1/20 3/20 1/1,140
Mathematics
1 answer:
slamgirl [31]3 years ago
3 0

1/1140 because the 3 students make one group of 1140 possible 

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How many full glasses of water will be needed to fill the jug ? Jug= 2.8 litres, Cup= 200ml​
igomit [66]

Answer:

14 cups

Step-by-step explanation:

1 l = 1000ml

to filled the jug we need 2.8 litres

2.8 l to ml

2.8 × 1000

= 2800ml

how many cup would give us 2800ml

2800 ÷ 200

=14 cups

3 0
2 years ago
What is the quotient ? a-3/7 divided by 3-a/21
LUCKY_DIMON [66]
Final result :  -3



Step by step solution :Step  1  :            3 - a Simplify   —————             21  Equation at the end of step  1  :  (a - 3)   (3 - a)  ——————— ÷ ———————     7        21   Step  2  :            a - 3 Simplify   —————              7  Equation at the end of step  2  :  (a - 3)   (3 - a)  ——————— ÷ ———————     7        21   Step  3  :         a-3      3-a Divide  ———  by  ———          7       21 
 3.1    Dividing fractions 
To divide fractions, write the divison as multiplication by the reciprocal of the divisor :
a - 3     3 - a       a - 3        21  —————  ÷  —————   =   —————  •  ———————  7        21           7       (3 - a)
 3.2    Rewrite   (3-a)    as  (-1) •  (a-3) Canceling Out : 3.3    Cancel out  (a-3)  which now appears on both sides of the fraction line.
Final result :  -3
4 0
3 years ago
Read 2 more answers
Math is not my strong point..
Leya [2.2K]
Answer: 16 in

Explanation:

PQ/QR = PT/TS

PQ/4 = 12/3
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PQ x 3 = 48
PQ = 48/3
PQ = 16
6 0
3 years ago
Read 2 more answers
I need help with math please
zvonat [6]

Answer:

Rational and integer i.e option A and C

3 0
3 years ago
Your pet needs 0.75 ounces of medince each day. How many days would 1 pint last?​
Vika [28.1K]
1 pint is equal 16 oz, so 16/0.75 is approximately 21.33 days so it would last 21 days.
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