21 out of 35 students play tennis what percentage of the class plays tennis?
1 answer:
You might be interested in
Answer:
Number of bulbs which can be lit using 1 kg of coal = 9
Step-by-step explanation:
Energy yielded by burning 1 kg of coal = 30 × 106 joules
= 3180 joules
Amount of energy that can be used for electricity = 30 % of 3180 joules
= 0.30 × 3180
= 954 joules
Energy needed for lighting one bulb = Wattage of bulb × No. of hours of lighting
⇒ Energy needed for lighting one bulb = 100 × 1
= 100 joules
Hence, Number of bulbs which can be lit using 1 kg of coal = 9
Answer:
Option C) 34 inches
Step-by-step explanation:
We are given the following in the question:
The graph shows the number of beads on varying cord lengths.
The y-axis represents the number of beads and x-axis represents the cord length in inches.
The graph represents the equation:
where y is the number of beads and x is the cord length.
We have to find the cord length of a necklace consisting of 88 beads.
Thus, we are given y = 88.
Putting this value in the equation, we get,
Thus, the cord length of necklace with 88 beads is approximatwly 34 inches.