Answer:
1. They help you with estimation
2. It makes numbers simpler and easier to do
3. Makes mental maths much quicker
Use m a t h w a y to find this answer very easy 3i - 2
Answer:
The correct option is commutative property.
Step-by-step explanation:
The expression that Renee is simplifying is:
It is provided that, Renee recognizes that 7 and 
are reciprocals, so she would like to find their product before she multiplies by 
.
The associative property of multiplication states that:
The commutative property of multiplication states that:
The distributive property of multiplication states that:
The identity property of multiplication states that:
So, Renee should use the commutative property of multiplication to find the product of 7 and ,
Thus, the correct option is commutative property.
Answer:
The population mean.
Step-by-step explanation:
29.9 is the <u>sample</u> mean.
Let x is the price for one ticket in section A and y for section B.
In first week they paid <span>$108 for 6 tickets in section A and 10 tickets in section B.
So,
6x + 10y = 108
And in t</span><span>he following week, they paid $104 for 4 tickets in section A and 12 tickets in section B.
So,
4x + 12y = 104
12y = 104 -4x
y= (104 -4x) /12
now, put this value for y in first equation
6x +10(104 - 4x / 12) = 108
multiplying all terms with 12
72x +10(104 -4x) = 1296
72x + 1040 -40x = 1296
32x = 256
x = 8
So, price for one ticket in section A is $8.
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