Answer:
43.75% students were participated last year.
Step-by-step explanation:
We have been given that last year 7/16 of all students at a school participated in the science fair.
Let us suppose the total number of students were x. Then, number of students participated last year is given by
Hence, the percentage of the students participated last year is given by
Therefore, 43.75% students were participated last year.
x + 2y = 1
x-2y = 13'
then y =
On solving the given set of equations, we get the value of y = 3.
A set of equations having two or more variables whose values can satisfy all the equations in the set at the same time, with the number of variables equal to or fewer than the number of equations in the set is called simultaneous equations.
We are given a set of simultaneous equations in x and y,
x + 2y = 1
x - 2y = 13.
We are asked to find the value of y.
Let the equations
x + 2y = 1... (i)
x 2y = 13 ... (ii).
To solve for y, we subtract (i) from (ii) to get,
∴ We get -4y = 12.
Dividing both sides of this equation by -4, we get,
(-4y)/(-4) = 12/(-4)
or, y = -3.
∴ On solving the given set of the equation we get the value of y = 3.
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Answer:
y= -3
Step-by-step explanation:
adding both the equation we get x= 7
and then put value of x in any one equation u will get y as -3
Answer:
Step-by-step explanation:
The area is the product of the length and width
Width = ?
The width is 2 3/20 m
B) 49 feet
Eliminate
C) 56 feet
D) 63 feet