step by step explaination
this is u r answer
Answer:
1/4,1/3,8/16,5/9
Step-by-step explanation:
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Answer:
7
Step-by-step explanation:
form a proportion
12/2=42/x
cross multiply
12x=84
x=7
Answer:
2.75 or as a mixed number or fraction. 33/12 as a mixed number is
2 3/4
Step-by-step explanation:
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You have 7 numbers, two numbers 4 , one 5, one 6 and three numbers 7.
From these 7 numbers you can create

phone numbers, but they are not all different.
If you have two numbers 4, then you have to divide obtained number by 2! (the number of all possible permutations of two numbers 4) and since you have three numbers 7 you should divide the obtained number by 3! (<span>the number of all possible <span>permutations of three numbers 7</span>). Then</span><span /><span>
</span><span>
</span><span>

.</span>
Answer: You can create 420 different phone numbers.<span />