First set up a proportion
240/160 = 320/200
Cross multiply and if the left equals the right it is similar.
graph of lines 3 y equals 2x plus 11 and y equals minus x plus 7. Lines intersect at ordered pair 2, 5
graph of lines 3 y equals 2 x minus 4 and y equals minus x plus 7. Lines intersect at ordered pair 5, 2
graph of lines 3 y equals 2 x plus 6 and y equals minus x plus 7. Lines intersect at ordered pair 3, 4
graph of lines 3y equals 2x plus 1 and y equals minus x plus 7. Lines intersect at ordered pair 4, 3
I don't know if it's right tho :C
Best estimate of the area of a triangle = 100 
.
Solution:
Given base of the triangle = 23.62 cm
Height of the triangle = 8.33 cm
Area of the triangle = 
Area of the triangle = 98.3773
Estimation means rounded off to the closest correct answer.
98.3773 rounded off to 100.
Hence, best estimate of the area of a triangle = 100 .
(3,750 people
60%=did shop
40%=did not shop =2,500
2,500/40 = x/100
40x = 2,500x100
40x=250,000
x = 250,000/40
x=6,250
6,250 =all people at the mall
6,250 - 2,500 =3,750 (60%)
OR
(2,500 x60)/40 = 3,750
