Answer:
ok
Step-by-step explanation:
Answer:
2d+18
Step-by-step explanation:
Distribute the 2 to the d and the 9
Answer:
130
Step-by-step explanation:
<u>Probability of green:</u>
<u>Number of attempts: </u>
<u>Expected number of landing on green: </u>
- <em>Expected frequency = probability × number of trials</em>
<u>Answer: </u>130 times
Answer:
x = 15
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
BC/DC = EC/AC , substitute values
3x×5/32 - 5x-5/56 ( cross- multiply )
56(3x - 5) = 32(5x - 5) ← distribute and simplify both sides
168x - 280 = 160x - 160 ( subtract 160x from both sides )
8x - 280 = - 160 ( add 280 to both sides )
8x = 120 ( divide both sides by 8 )
x = 15
Let's start with the question, how many questions do you need to get 88%?
so were are looking for
?/25 = 88% and 88% is also 0.88 so we can multiply 25 by 0.88
we get 22
But this doesn't here. the question asks us how many mistakes do you need. you can just subtract 22 from 25
25-22= 3
you need 3 misses to get 88%
