Answer:
43
Step-by-step explanation:
If x + 4y = 6 and you subst. -x+3 for y, you get x + 4(-x+3) = 6.
Then x - 4x + 12 = 6, or -3x = -6, or x = 2. Since y = -x+3, here y = -(2)+3 = 1.
Thus, the solution to this system of linear equations is (2,1).
Hey there! A dozen rolls = 12 rolls, of means multiply, we are going to multipy 3/4 by 12, make 12 a fraction, 12=12/1. Now, we can multiply 3/4 by 12/1. 3/4×12/1=36/4. Simplify 36/4 to 9. So, Raymond bought 9 rolls.
The biggest side should be the hypotenuse in a right triangle.
In the Pythagorean theorem, side^2 + side^2 = hypotenuse^2
28^2 + 45^2 = 53^2 if these lengths create a right triangle.
Since 28^2 + 45^2 = 2809 and 53^2 = 2809, these sides do in fact form a right triangle.
1 + 3 + 2 + 2 + 3 + 1 + 4 + 0 + 5 + 2 + 6 + 2 = 31
There a total of 12 numbers
31/12 = 2.58 (rounded to the nearest hundredth)
Your mean is 2.58
Hope I helped!
Let me know if you need anything else!
~ Zoe
