if there are 3 classes of students who are taking additional mathematics. there are 42 students in class A and 40 students in class B. Students in class A constitute 35% of the total number of students taking additional mathematics find the number of students in class C

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140

720 oranges were in the shipment.

(1 km=1000m, 1m=100 cm)