Answer:
46.22
Step-by-step explanation:
Class A total= 23 x 13= 299
Clas B total= 57 x 28= 1596
total score= 299 + 1596 = 1895
total mean= 1895 ÷ (13+28) = 1895 ÷ 41
= 46.22
Answer:
this means she ate an average of 30 raisins each day
so she ate 30 on the third day
so the amount she ate each day is like this
1. 16
2. 23
3. 30
4. 37
5. 44
16 + 23 +30 +37 +44=150
Answer:
a. The remaining length of the candle varies from <u>10 </u>inches to <u>5.5</u> inches
b. Remaining Length = 13 - b
Step-by-step explanation:
b.
The remaining (unburnt) length of the candle must be equal to the difference between total length of the candle and the burnt length of the candle. So, the expression for the remaining length can be written as:
Remaining Length = Total Length - Burnt Length
where,
Total length = 13 inch
Burnt Length = b
Therefore,
<u>Remaining Length = 13 - b</u>
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b.
Now, we use the same expression for:
burned length = 3 inches
Therefore,
Remaining Length = 13 inches - 3 inches
Remaining Length = 10 inches
Now, for
burned length = 7.5 inches
Therefore,
Remaining Length = 13 inches - 7.5 inches
Remaining Length = 5.5 inches
Hence,
<u>The remaining length of the candle varies from 10 inches to 5.5 inches</u>