Explanation:
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Price starts at: $7.37.
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The first month, it increases by $0.50, so we add $0.50 to that starting value:
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$ 7.37
+ 0.50
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$ 7.80
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The second month, it decreases by $0.38, so we subtract $0.38 from our last obtained value:
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$ 7.80
- 0.38
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$ 7.42
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During the third month, it increases by $0.32, so we add $0.32 to our last obtained value:
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$ 7.42
+ 0.32
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$ 7.74
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During the fourth month, it decreases by $0.12, so we subtract $0.12 from our last obtained value:
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$ 7.74
- 0.12
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$ 7.62; which is our answer.
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How do we know our answer is reasonable?
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We start with: $7.37, then plus $0.50, then minus 0.38, then plus 0.32, then minus 0.12.
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The "minus 0.38"and "plus 0.32" do not "cancel out" , but come close to. The "plus 0.50" and "minus 0.12"; in consideration with the above sentence; suggest that the value should be over the starting price of $7.37, but not much more than $8.00; or even less than $8.00.
Our answer is: $7.62; which seems "reasonable".
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Your answer is 13.44 and rounded to the whole is still going to be 13
Answer:
6cm
Step-by-step explanation:
Answer:
1) y = -2x - 1
2) y = -3/4 + 3
3) y = 4x + 9
4) y = - 5/3x - 2
Step-by-step explanation:
b = y - m*x
1) (-7,13) and slope: -2
b = 13 - (-2)*(-7)
b = 13 - 14
b = -1
2) (4,6) lope = -3/4
b = 6 - (-3/4)*(-4)
b = 6 - 3
b = 3
y = -3/4x + 3
3) (-5,-11) and (3,-7)
Slope: (1 - - 11)/(-2 - - 5) = 12/3
= 4
b = -11 - (4) (-5) = 9
b = 9
4) slope = (-7 - 8)/(3- - 6)
= -15/9 = - 5/3
b = 8 - (-5/3)*(-6)
b = 8 - 10
b = -2
