Hello! :)
We can use the following area to solve for the area of the trapezoid pictured:
Where:
h = height
b1 = bottom base
b2 = top base
Plug in the given values:
Simplify:
Answer:
quantity a is halfed
Corrected question;
A quantity a varies inversely as a quantity b, if, when b changes a changes in the inverse ratio. What happens to the quantity a if the quantity b doubles?
Step-by-step explanation:
Analysing the question;
A quantity a varies inversely as a quantity b,
a ∝ 1/b
a = k/b ......1
when b changes a changes in the inverse ratio;
Since the change at the same ratio but inversely, k = 1
So, equation 1 becomes;
a = 1/b
If the quantity b doubles,
ab = 1
a1b1 = a2b2
When b doubles, b2 = 2b1
a1b1 = a2(2b1)
Making a2 the subject of formula;
a2 = a1b1/(2b1)
a2 = a1/2
Therefore, when b doubles, a will be divided by 2, that means a is halfed.
Answer:
Since k is constant, we can find k given any point by multiplying the x-coordinate by the y-coordinate. For example, if y varies inversely as x, and x = 5 when y = 2, then the constant of variation is k = xy = 5(2) = 10. Thus, the equation describing this inverse variation is xy = 10 or y = .planation:
Answer:
Step-by-step explanation:
Use the following formula:
slope: 
Let:
Plug in the corresponding numbers to the corresponding variables:
is your answer.
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Answer:
he answer is 140 minutes to plant 14 saplings.
Step-by-step explanation:
30 divided by 3=10
so it takes 10 minutes to plant one sapling.
10x14=140 so this is how you get your answer. im 99% sure
