Step-by-step explanation:
y = x + 7
Using the substitution method,
-2x - 11 = y
-2x - 11 = (x + 7)
3x = -18
x = -6.
y = (-6) + 7 = 1.
The solution pair is (-6,1).
You take the radius, multiply it by 2, and then multiply it by pi. AKA c=2•pi•r
Answer:
let length be b+5 and breadth be b
given,
perimeter of rectangle=150
or, 2(l+b) =150
or, 2(b+5+b)=150
or, 2b+5=150/2
or, 2b+5=75
or, 2b=70
therefore, b=35m
l=b+5
=35+5
=40m
If you would like to solve the equation 3/4 * (4 * c + 16) = 2 * c + 9, you can calculate this using the following steps:
3/4 * (4 * c + 16) = 2 * c + 9
3/4 * 4 * c + 3/4 * 16 = 2 * c + 9
3 * c + 12 = 2 * c + 9
3 * c - 2 * c = 9 - 12
c = - 3
The correct result would be - 3.
4x - 4y = 10
1. Factor out the common term 4
4(x - y) = 10
2. Divide both sides by 4
x - y = 10/4
3. Simplify 10/4 to 5/2
x - y = 5/2
4. Add y to both sides
x = 5/2 + y
3x + 2y = 5
1. Subtract 2y from both sides
3x = 5 - 2y
2. Divide both sides by 3
x = 5 - 2y/3