8 feet divided by 3 would equal 2.667 feet per board.
0.15p , p < $900
C(p) = 0.17p, $900 < p < $1,500
0.21p, p > $1,500
Answer:
(x,y)--> (2,1), (4, -5), (7, -14), (9, -20), (11, -26)
Step-by-step explanation:
y = -3x + 7
substituting x-values in y= -3x + 7
x = 2
y= -3 × 2 + 7
= -6 + 7
= 1
x=4
y= -3 × 4 + 7
= -12 + 7
= -5
x=7
y= -3 × 7 + 7
= -21 + 7
= -14
x=9
y= -3 × 9 + 7
= -27 + 7
= -20
x=11
y= -3 × 11 + 7
= -33 + 7
= -26
The property in the expression 4 + (x + y) = (4 + x) + y is Commutative property.
<h3>What is the number?</h3>
A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
It is given that:
4 + (x + y) = (4 + x) + y
As we know,
Commutative property is the property in which we can arrange the terms withouth changing the sign.
For an example:
a + b = b + c
In the given expression
4 + (x + y) = (4 + x) + y
The Commutative property is applied to rearrange the terms.
Thus, the property in the expression 4 + (x + y) = (4 + x) + y is Commutative property.
Learn more about the number here:
brainly.com/question/17429689
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