5 In a class, the ratio of boys to
girls is 3 : 5.
There are 24 children in total.
Work out the number of boys.​

9

Step-by-step explanation:

24 ÷ 8 = 3

3 × 3 = 9 (boys)

3 × 5 = 15 (girls)

3x+5x=24

x=24/8

x=3

3x3

=9

Thus there are 9 boys

hope it helps

a and c

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh