She began with 20.
If she bought 7 more books and ended up with 17, that means she had ten beforehand. If she had half remaining, we simply double it, thus getting 20.
Answer:
Angle CFD = 30°
Step-by-step explanation:
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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:
1st fraction =
2/6*3/2
2nd fraction =
3/6*2/2
Step-by-step explanation:
Answer:
b=V/h
Step-by-step explanation:
V=bh
making b the subject of formula,we have,
b=V/h
