Answer:
We want to simplify:
(3 + 1/4)*(3/5)
The first step is to write the first term as a single rational number.
We know that:
3*1 = 3
and 4/4 = 1
then:
3*1 = 3*(4/4) = (3*4)/4 = 12/4
We do this because we want to have the same denominator in both numbers, so we can directly add them.
Then we get:
(3 + 1/4)*(3/5) = (12/4 + 1/4)*(3/5) = (13/4)*(3/5)
And remember that in the multiplication of rational numbers the numerator are multiplied together and the same for the denominators, then we get:
(13/4)*(3/5) = (13*3)/(4*5)
If we solve the multiplications we get:
(13*3)/(4*5) = (39/20)
Now, we can notice that in the numerator we have two prime numbers, 13 and 3.
And in the denominators, we have a 4 (which is equal to 2*2) and a 5.
So the prime numbers in the numerator and the denominator are all different, this means that we can not simplify it furthermore.
Then we have:
(3 + 1/4)*(3/5) = (39/20)
Well, we would first have to write an equation. Let's start with letter (a). We will put in the variable (x) for the number of children there were, because we don't know how many there were. So... IF we knew how many children there were, what would we do to find out how much pie each child got? Of course, we would divide! Soooo....
6 (mangos) divided by x (the number of children) = 5/6
Now, we solve for x!
So, our first step in the equation 6/x=5/6 would be to multiply, because multiplication is the opposite of division! So, just let me see if I can work this.....
6/x(×)5/6
So, we now can cross multiply and get...
5x=36 (Because 5 time x is 5x and 6 times 6 is 36)
Now, we divide!
So, 5x/5 cancels out and we get just plain little x. 36/5 gives us.....
Improper Fraction Form: 36
Mixed Number Form: 7 1/5
Decimal Form: 7.2
And that's your answer! I really hope this helps! ^_^
Remember d=rt
so its 3.5=r(0.5)
divide 3.5 by 0.5, which is 7. His rate is 7 miles per hour.
Step-by-step explanation:
hope thissss helpsss!!!!
Answer:
In this case, they are using a simple random sampling method, because in each store they choose 100 random people without stratifying them or put any condition. In the simple random sampling method, the samples have the same probability to be chosen, but it isn't reliable in big populations. The population is all the costumers that visit all the stores, while the sample is just the costumers that were surveyed in all the stores. So, it's a simple random sampling method, and the population is all the people that visit all the stores.