Answer: 10%
Step-by-step explanation:
given data:
no of cards left = 15.
no of diamonds left = 5.
probability of drawing a diamond = 5/15.
probability that the next two cards drawn to anika are diamonds without replacements.
= 5/15 * 4/14
= 2/21
= 0.0952 * 100
the probability that the two cards dealt to Anika would be diamond is 9.52% ~ 10%
You can divide the whole expression by -3:

Recalling that

Let's compare the middle term:

So, we want to complete

Which differs from
by 16. So, if we add 16 to both sides, we have

22 houses can be cleaned in 11 hours.
Step-by-step explanation:
It is given that;
6 hours = 12 houses cleaned
1 hour = 
1 hour = 2 houses cleaned
In 1 hour, 2 houses can be cleaned, therefore,
11 hours = Time*houses cleaned in one hour
11 hours = 11*2 =22 houses cleaned
22 houses can be cleaned in 11 hours.
Keywords: unit rate, multiplication
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