Question

4. Jenny is only borrowing the cellphone chargers of her brother, sister and mother because
she lost her phone charger. All chargers are of the same specifications as hers even
though they have different phone brands. However, she would like to know which charger
and charging cable combination would fill her phone battery the fastest. She used the
following codes as her reference and charged her phone uninterrupted using the following
combination. The charging time of the phone was then compared.
Brother's Charger: BB
Brother's Cable: bb
Sister's Charger: SS
Sister's Cable: ss
Mother's Charger: MM
Mother's Cable: mm
Charging
Time
time
BBbb
BBss
Charging time
time
SSss
SSbb
SSmm
Charging time
time
MMmm
MMbb
MMss
Independent variable:
Dependent variable:
Extraneous variable:​

Answer 1

Answer:

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Explanation:

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