Answer:
Step-by-step explanation:
Number of phones broken = 3
Number of phones not broken = 15
Total number of phone in the shipment = 18
Since a not broken phone has been randomly selected, the number of phones not broken reduces to 14. And the total number of phones would be 17.
Pr(of newly selected phone NOT broken) = 
=
Therefore, the probability of the selected phone not being broken is .
Answer: 3/2
Step-by-step explanation:
<u>Concept:</u>
When doing division "[a]÷[b]", [a] is the dividend, [b] is the divisor.
<u>Solve:</u>
(9/16) / (3/8) ⇔ <em>Given</em>
(9/16) × (8/3) ⇔ <em>Convert division into multiplication by using the reciprocal </em>
<em> of the divisor</em>
(9×8) / (16×3) ⇔ <em>Numerator multiply each other/ Denominator multiply each </em>
<em> other</em>
<em />
72 / 48 ⇔<em> Multiplication</em>
(3×24) / (2×24) ⇔ <em>Factorize</em>
3 / 2 ⇔ <em>Simplify</em>
Hope this helps!! :)
Please let me know if you have any questions
Answer:
times 25 and 9
Step-by-step explanation:
Answer:
7/16
Step-by-step explanation:
assume she had 8/8 units of sea shells, she then left 1/8 at home
so: 8/8-1/8=7/8
so she has 7/8 units of shells still at home
and she gives half to her friend
so: 7/8*1/2=7/16
She gave 7/16 of the original amount of shells she had to her friend
<h2>
Answer:</h2><h2>
It takes 5.744 hours for drain B to empty the pool.</h2>
Step-by-step explanation:
Let drain A nad be are used to empty a swimming pool.
Given drain A alone can empty the pool in 4.75 hours.
When both A and B are open, it takes 2.6 hours.
The time taken by B to draint the pool = ?
2.6 (t+4.75) = 4.75t
2.6t + 12.35 = 4.75t
t = 5.744 hours
It takes 5.744 hours for drain B to empty the pool.
