Answer:
Step-by-step explanation:
The given quadratic equation :_
To solve this , we first add 15 on the both the sides of the above equation, we get
Now, we divide both sides by 5, we get
Taking square roots on both the sides , we get
Hence, the two possible solutions =
Plant's height after 31 months:82 centimeters
<h3>How to find the height of the plant</h3>
The equation that can be used to find the height of the plant is given as
h = 52 centimeters + 1m
We have that the plant grows at 1 centimeter every month hence we have 1m in the equation.
Then the number of periods is m, Now we are to find the height in this period of time
h = 52 + 1*31
= 51 + 31
= 82
Hence the height after 31 months is given as 82 centimeters.
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Answer:
m = 1.25d
Step-by-step explanation:
A train is traveling at a constant speed and goes a distance of 7 ½ kilometers or 7.5 km in 6 minutes.
6 min = 7.5 km
1 min = (7.5/6) km/min
= 1.25 km/min
or
In m min, (7.5/6)d is travelled by the train. Hence, the relation between d and is :
Hence, this is the required solution.
So first you have to find how much is vacant by subtracting 45600 and 38799
45600-38799= 6801
To find the percentage of the ocuupancy divide 38799 by 45600 to get about 0.85
You move the decimal two places to the right to make it a percent of 85%.
You would need 5% more to fill it 90%.
To find 5 percent of 45600 multiply 45600 by 0.05 because 0.05 equals 5%.
After multiplying you get 2280.
So, 6801 square feet is vacant
85% is occupied
To make it 90% occupied you would need 2280 more square feet