-a+7=2a-8
-a+a+7=2a+a-8 add a on both sides
7+8=3a-8+8 add 8 on both sides
15/3=3a/3 divide 3 on both sides
a=5 solution
Answer:
For the one on the far left its 104 m2
Step-by-step explanation:
u split the shape in a square and rectangle
them u fin the area of the square by multiplying both sides. (8*8)
then u find the area of the rectangle by using the formula
2*(16+4)
when u find both areas u count them up and it'll become 104 m squared
Given - diameter = 98 cm
So radius = 98/2
=> radius = 49 cm
Area of circle = πr^2
=> Area of circle = 22/7 * 49 * 49
=> Area of circle = 7,546 cm^2
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Answer:
The airplane is cruising at 200 metres per second.
Step-by-step explanation:
The speed of the object can be got by dividing the distance it travelled by the time taken to travel that distance.
For us to get the accurate cruising speed, we will have to convert all units to their S.I form
Distance - 1 kilometer = 1 X 1000 metres = 1000 metres
1/12 of a minute = 1/12 X 60 = 5 seconds.
Therefore the speed = distance / time
= 1000/5 = 200m/s
The airplane is cruising at 200 metres per second.
The percentage of birds in the zoo will be 15%
