Answer:
17) 288
18) $69.30
19) $56.00
20) $135.00
21) $132.00
22) $4,515
23) 6.9%
Step-by-step explanation:
17)(3 × 4) × (6 × 4) = 288
18) 18% + 8% + 100% = 126%.
$55 × 1.6 = $69.3
19) $32 × 175% = $56
20) 100% - 15% - 10% = 75%
$180 × 0.75 = $135
21) $3,300 × 0.04 = $13
22) 2.5% × 3 = 7.5%
$4,200 × 1.075 = $4,515
23) 58 × 1.069 = 62.002
At 15 hours the amount of bacteria is 1345. It takes 47 hours to get 350000 bacteria.
Let y represent the amount of bacteria after n hours
Since the bacteria doubles after every 4 hours, hence, this can be represented by exponential function:
y = abⁿ
where a is the initial value and b is the multiplier.
Since it doubles every 4 hours and the initial amount of bacteria is 100, this can be represented by:
a)
b) y = 350000
Therefore at 15 hours the amount of bacteria is 1345. It takes 47 hours to get 350000 bacteria.
Find out more at: brainly.com/question/3127939
<span>I = PRT
</span><span>P = 1000
R = 2.5% -- change to a decimal = .025
T = 3
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<span>
now we sub
I = PRT
I = (1000)(.025)(3)
I = 75
</span><span> so at the end of 3 years, there will be : 1000 + 75 = $ 1075 in the account
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Hope this helps!!
~Lena~
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