The statement which best compare the mold growth rates is: C. the mold growth rate of the banana bread was half the mold growth rate of the whole wheat bread.
<h3>How to compare the mold growth rates?</h3>
First of all, we would determine area of mold growth B(t) on the piece of banana bread by using this equation:
B(t) = 20(1.06)^t
At t = 1, we have:
B(t) = 20(1.06)^1
B(t) = 21.2 mm².
At t = 2, we have:
B(t) = 20(1.06)^2
B(t) = 22.47 mm².
At t = 3, we have:
B(t) = 20(1.06)^3
B(t) = 23.82 mm².
At t = 4, we have:
B(t) = 20(1.06)^4
B(t) = 25.25 mm².
Now, we can compare the mold growth rates by using this expression:
B(t) = xW(t)
x = B(t)/W(t)
x = 21.2/40.8
x = 0.5.
At t = 2, we have:
x = 22.47/41.62
x = 0.5.
At t = 3, we have:
x = 23.82/42.45
x = 0.5.
At t = 4, we have:
x = 43.30/25.5
x = 0.5.
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Answer:
$72
Step-by-step explanation:
5 gallons = $18
x 4 x 4
20 gallons = 72 dollars
Answer:
x = 65
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
subtract the sum of the 2 given angles from 180° for third angle
third angle = 180° - (60 + 55)° = 180° - 115° = 65°
65° and x are vertical angles and are congruent, thus
x = 65
Answer:
6x-24y
Step-by-step explanation:
Step 1: -30x-12y+36x-12y
Distribute-3 to 10x and 4y
Then distribute 6 to 6x and -2y
Step 2: 6x-24y
After that add up like terms
3(2x+5)-x
=6x+15-x
=5 x +15