Answer:
18
Step-by-step explanation:
let girls be 8x and boys 6x
by the question
girls =8x=24
x=3
boys =6x=6×3=18
As in step 2 the student added -2 only at one side of equation which is against the law of addition property of equality
so the correct option from above equation is
The student did not properly apply the addition property of equality to isolate x.
SO its B
hope it helps
<span />
740,679,835 = 7.40679835 × 10^8 ≈ 7.4 × 10^8
<span>In a triangle the sum of two sides is always greater than the third side.
Let x represent </span><span>possible measures for the third side of a triangle
</span><span>
20-15 < x < 20+15
5 < x < 35 </span>← answer