there are 10 numbers you want either a 4 or 7 ( 2 numbers)
so probability is 2/10 which reduces to 1/5
Answer:

Step-by-step explanation:
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Answer:
a = 8
Step-by-step explanation:
8 + 3 + 1 - 4 = 3a - 2a
8 = a
a = 8
I hope this helps a little bit.
Answer:
87/3
Step-by-step explanation:
Here we are given the expression:

Now we have to find the value of this expression when x equals 9.
So plugging the value of x as -9 in the given expression:


=87/3
So on evaluating we get the value of expression as 87/3.
Answer:
1 and 1/8
Step-by-step explanation:
The number 1.125 can be writen using the fraction 1125/1000 which is equal to 9/8 when reduced to lowest terms.
It is also equal to 1 1/8 when writen as a mixed number.
You can use the following approximate value(s) for this number:
1.125 =~ 1 (if you admit a error of -11.111111%)