We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?
We can set up the proportion as :
width 1 : length 1 = width 2 : length 2
20 : 30 = 5 : x
We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)
20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
Answer:
3n+4 or n3+4
Step-by-step explanation:
7,10,13,16
they all have a difference of 3
so that's 3n
start with the first one: 3(1)+?=7
7-3=4
3n+4
use this for the other ones to double check
3(2)+4
6+4=10
Answer:
No
Step-by-step explanation:
Because 50+30 is not 180
