Yesterday, 1/4 of 80 =20 gave their speeches, so there are 80-20=60 students left.
Today, 2/5 of 60=24 students gave their speeches, so there are 60-24=36 students who still haven't give their speeches
another way to think of it is 80*(1- 1/4)*(1- 2/5)=80*(3/4)*(3/5)=36
Factor <span><span>t2</span>−36</span><span><span>t2</span>−36</span><span>=<span><span>(<span>t+6</span>)</span><span>(<span>t−6</span>)
</span></span></span>Answer:<span><span>(<span>t+6</span>)</span><span>(<span>t−6</span>)</span></span><span>
Good luck mate :P</span>
Answer:
x = 12
Step-by-step explanation:
The figure in the question was split into the triangles in the attachment to the solution.
Now applying the principle of similar triangles, we have:

cross-multiplying, we have:

solving for x,
x = 12
13/45, or option A, is the correct answer.
Answer:
Option (C)
Step-by-step explanation:
From the picture attached,
Two lines 'h' and 'k' are the parallel lines and a transversal 'n' is intersecting these parallel lines at two distinct points.
By the theorem of alternate interior angles, angle 8 and angle 11 will be equal in measure.
∠8 ≅ ∠11 [Alternate interior angles]
m(∠8) = m(∠11) = 118°
Therefore, Option (C) will be the answer.