Answer:
2.5n=10 n = 4
Step-by-step explanation:
sum is addition
twice n and a half is 2.5n
equals 10
10 divided by 2.5=4
You can find the value of p by dividing both sides of the equation by 2. Resulting in 3.5 as the answer
Answer:
(x-3)² + (y+2)² = 72
Step-by-step explanation:
center is halfway between (9,-4) and (-3,8).
average of x-coordinates = (9-3)/2 = 3
average of y-coordinates = (-4+8)/2 = -2
center: (3,-2)
length of diameter = √[(9-(-3))²+(-4-8)²] = √288 = 12√2
radius = 6√2
(x-3)² + (y+2)² = (6√2)² = 72
5(x+1)-2x=2(3+x) —> factorise
5x+5-2x=6+2x —> - 3x
3x+5=6+2x —> -2x
x+5=6 —> -5
x=1
The shape the net forms is a cube