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Volgvan
3 years ago
9

The table shows the battery life of four different mobile phones:

Mathematics
2 answers:
tekilochka [14]3 years ago
5 0
Answer: Phone C

Using quick mental math, we can do 8% of 10 to get 0.8, which is close to the value of 0.0845*10. Also fairly quick is moving the decimal point over 1 spot to the right and we go from 0.0845 to 0.845 and that rounds to 0.8 when rounding to one decimal place. Recall that 8.45% = (8.45/100) = 0.0845

If you want to compute out the four results with a calculator, then it would look like this:
0.0845*20 = 1.69
0.0845*25 = 2.1125
0.0845*10 = 0.845
0.0845*18 = 1.521
and this shows that no other result (but choice C) is close to 0.8

So that's why the answer is choice C
deff fn [24]3 years ago
4 0

Answer:

The answer is C

Step-by-step explanation:

I took the test and got this anwser right!!!!!

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2 years ago
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Answer:

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20 divided by 2 (5+5)=
AveGali [126]
<span>The correct answer is 1.

Explanation:
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Read 2 more answers
What value of x is in the solution set of -5x - 15 &gt; 10 + 20x?​
Georgia [21]

Answer:

-1>x

Step-by-step explanation:

-5x - 15 > 10 + 20x

Add 5x to each side

-5x+5x - 15 > 10 + 20x+5x

-15> 10+25x

Subtract 10 from each side

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-25> 25x

Divide each side by 25

-25/25> 25x/25

-1>x

3 0
3 years ago
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