Answer:
A, D and E
Step-by-step explanation:
Option B is an inequality while Option C is an Equation. However, Rest of the options are expressions because they don't have any equality (=) sign or any inequality (<,>,≥,≤). So, they are expressions.
Answer: d. 25
Step-by-step explanation:
Let x be the total number of students in the class.
As per given :
Number of students want ice cream party = 20% of x= 0.20x
[we divide percent by 100 to convert it into decimal.]
Actual number of students want ice cream party =5
⇒ 0.20x=5
Divide both sides by 0.20 , we get
⇒ x=
Hence, the total number of students in the class.= 25
Thus , the correct answer is d. 25
Term is either a single number or variable or number of numbers and variable multiplied together .Terms are separated by +or - or sometimes by divide
Answer:
12 minutes
Step-by-step explanation:
Candles can be manually packed at the rate of ...
... (400 candles)/(36 minutes) = 11 1/9 candles/minute
The two systems together pack candles at the rate of ...
... (400 candles)/(9 minutes) = 44 4/9 candles/minute
Then the machine's packing rate is the difference between the total and the manual rates:
... machine rate = (44 4/9 candles/minute) - (11 1/9 candles/minute)
... = 33 1/3 candles/minute.
At this rate, the machine working alone can pack 400 candles in ...
... (400 candles)/(33 1/3 candles/minute) = (400/(100/3)) minutes
... = 400 × 3/100 minutes = 12 minutes