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Sati [7]
3 years ago
6

After each charging, a battery is able to hold only 99% of the charge from the previous charging. The battery was used for 15 ho

urs on its first charge before it had to be recharged. What is the total number of hours the battery can be used over its lifetime?
Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0

Answer: 13.5 hours or 14 hours (if you round it)

Step-by-step explanation:

\frac{0.90}{1.00} * 15

=13.5

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Tatiana [17]

Answer:

sqrt(50)

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3 years ago
Read 2 more answers
1) solve for w: 3w - 10 = 4w + 5<br> 2) solve for t:6 -2t &gt;18
Gre4nikov [31]
Problem # 1
 3w-10=4w+5
(3w-10) + (10-4w) = (4w+5) + (10-4w)
(3w-10) + (-4w+10) = (4w+5) + (-4w +10)
3w-10-4w+10 = 4w +5 -4w +10
3w-4w=15
-w=15
w= -15 (w is negative 15)

problem #2.
6-2t > 18
6-2t-6 > 18-6
-2t > 12 
(-1) (-2t) >  12 (-1)
2t > -12
next divide by 2
2t/2 > -12/2
 t >  -6     (t is greater then negative 6)

 
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3 years ago
Darlene was asked to identify which of the following numbers is prime. Witch number should she choose
UkoKoshka [18]
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8 0
3 years ago
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