Dave wants to build a rectangular screened-in porch that is 20 feet long, and it will extend 6 feet out from the backside of his
1 answer:
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306 is the total cards sent by all the students in the class. Lets say x is the number of students in class, therefore each student needs to send x-1 cards (since they do not send themselves a card). So depending on your level of math, you could either take the complex way to solve it using quadratic equations, or just find the number that if multiplied by itself then subtracted, gives you 306.
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Complex way
So a = 1, b = -1, c=-306
using the quadratic equation:
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Complex way
So a = 1, b = -1, c=-306
using the quadratic equation:
Answer:
4000 is size of a crowd walking in a charity fundraising March.
Step-by-step explanation:
Given:
Dimensions of rectangular space 10 feet by 12000 feet
So we can say that,
Length = 1200 ft
Width = 10 ft
Now we will calculate the area of rectangular space which is given by
Hence Area will be =
Now we know that 40 people occupy a rectangle measuring 10 feet by 12 feet.
Length = 12 ft
Width = 10 ft
Area =
It says that 40 people are occupied in 120
So how many people will be there in 12000
By using unitary method we get,
Number of people =
Size of a crowd walking in a charity fundraising March is 4000.