( -12 ) * ( 4/3 - 3/3) =( -12 ) * ( 1/3 ) = -4.
Answer:
Commutative Property of Addition: a + b = b + a
Step-by-step explanation:
The Commutative Property of Addition implies that even on changing the order of addition the final result (i.e. the sum) remains the same.
- Consider the addition of two numbers, say <em>a</em> and <em>b</em>:
a + b = b + a
Suppose <em>a</em> = 5 and <em>b</em> = 6, then:
<em>a</em> + <em>b</em> = 5 + 6 = 11
<em>b</em> + <em>a</em> = 6 + 5 = 11.
Thus, a + b = b + a.
- Consider the addition of three numbers, say <em>a, b</em> and <em>c</em>:
a + b + c= a + c + b = b + a + c = c + a + b
Suppose <em>a</em> = 4, <em>b</em> = 3 and <em>c</em> = 6, then:
a + b + c = 4 + 3 + 6 = 13
a + c + b = 4 + 6 + 3 = 13
b + a + c = 3 + 4 + 6 = 13
c + a + b = 6 + 4 + 3 = 13.
Thus, a + b + c= a + c + b = b + a + c = c + a + b.
Answer:
Each zoo covers 95 acres.
Step-by-step explanation:
Given data:
Ranch covers = 825,000 acres
Zoo fitted inside the ranch = 8,684
Leftover acres = 20
Acres covered by each zoo = ?
Solution:
Let's suppose that the acres covered by each zoo is donated by a symbol "A"
According to the given condition, we develop a mathematical equation as follow:
8,684 A + 20 = 825,000
8,684 A = 825,000 - 20
8,684 A = 824,980
A = 824,980 / 8,684
A = 95
So, the acres covered by each zoo is 95.
Step-by-step explanation:
the volume of the bucket is
15,000 = 1.5 × 10⁴ ml
the trough holds
2.7 × 10⁵ ml
by calculating how often the volume of the bucket fits into the volume of the trough, we will know how many buckets of water are needed :
2.7 × 10⁵ / (1.5 × 10⁴) = 2.7/1.5 × 10⁵/10⁴ = 2.7/1.5 × 10¹ =
= 27/1.5 = 18
the rancher needs 18 buckets of water to fill the trough.