Answer:
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Step-by-step explanation:
The answer for your question will be 21.55 plz rate a 5 star
<span>16: 2r - 6 =22
2r = 22 + 6
2r = 28
r =28/2
r = 14
17: 3g + 7 = 31
3g = 31 - 7
3g = 24
g = 24/3
g= 8
18: 3f - 7 = 38
3f = 38 +7
3f = 45
f = 45/3
f = 15</span>
The correct answer is 4.8 hours
Explanation:
This mathematical problem can be solved by using the rule of three, which involves finding an unknown value by using three related values. The process is shown below:
1. It is known a fully charged battery (100% battery) lasts 16 hours. This can be represented as 100 = 16. But it is not know how much a 30% battery last; this can be represented as 30 = x.
2. Write all the values
100 = 16
30 = x
3. Cross multiply to create an equation and solve the equation
100 x = 48
x = 480 / 100
x = 4.8
Answer:
b and c
Step-by-step explanation:
