Answer: Associative property of addition
Step-by-step explanation: The statement (6 + 2) + 1 = 6 + (2 + 1) represents the associative property of addition. Notice that the addends or the numbers were adding are the same on both sides of the equals sign 6 + 2 + 1 but on the left side, 6 and 2 are grouped together and on the right side, 2 and 1 are grouped together.
The associative property of addition says that when we are adding more than two numbers, the grouping of the addends does not affect the sum.
Here, notice that 6 + 2 is 8 and 8 + 1 is 9. On the right side, the order of operations tells us to begin inside the parentheses so we have 2 + 1 which is 3 and 6 + 3 is also 9.
In general terms, we can write the associative property of addition as
(a + b) + c = a + (b + c) where <em>a</em>, <em>b</em>, and <em>c</em> are variables that can represent any number.
Answer:
$525+$115 = $640
Step-by-step explanation:
Answer:
The regular size is more economical.
Step-by-step explanation:
Consider the provided information.
A regular tube of toothpaste costs $2.50 for 3.2 ounces.
Find out the unit rate as shown below:
Therefore, the cost of one ounce is $0.78.
A travel size tube costs $1.00 for 1.2 ounces.
Find out the unit rate as shown below:
Therefore, the cost of one ounce is $0.833.
From the above calculation we can observe that regular tube toothpaste price is better buy.
Now find the percent as shown:
Firs find the difference
$0.83-$0.78 = $0.05
Therefore,
Hence, regular tube is 6.41% less costly as compare to travel size.
Answer:
32 marbles are Green Marbles and 17 Blue Marbles.
Step-by-step explanation:
49 - 17 = 32
