There are 4 second-grade classrooms that share 15 packs of paper. How much paper should each classroom get
1 answer:
You might be interested in
Answer:
481
Step-by-step explanation:
There are several ways you can get there.
1. There are only 13 numbers, so you can write them down and add them up.
25 + 27 + 29 + ... + 47 + 49 = 481
__
2. You can use the formula for the sum of an arithmetic sequence. This one has a starting value of 25, an ending value of 49, and 13 terms.
Sum = ((start) + (end))/2 × (number of terms) = (25 +49)/2×13 = 481
__
3. You can use a formula for the terms of the series and evaluate the sum.
an = 25 +2(n -1) = 2n +23
The solution to the system of equations is (3,1)
Step-by-step explanation:
The system of equations represented by graph are:
Solving the system of equations
Let:
Putting value of y from eq(2) into eq(1):
So, Value of x = 3
Putting value of x into eq(2)
So, value of y= 1
So, The solution to the system of equations is (3,1)
Keywords: System of equations
Learn more about system of equations at:
#learnwithBrainly
Answer:
True, r represents the distance from a point to the pole when plotting that point in polar coordinates.
Step-by-step explanation:
Given: The statement '' The value of r represents the distance from a point to the pole when plotting that point in polar coordinates ''
To state: whether the given statement is true or false
Solution:
In the cartesian coordinate system, any point is represented by the coordinates
In polar-coordinates system, distance of the point from the origin (pole)(r) and the angle that the line joining the point to the origin makes with the positive x
-axis are used as polar coordinates. Polar coordinates are of form
True, r represents the distance from a point to the pole when plotting that point in polar coordinates.