12 adult elephants, 6 young elephants = 18 total :)
For 11, we can subtract x from both sides for the first equation to get y=8-x, making the slope -1 for both equations and therefore making it parallel.
For 13, we can solve for y in the first equation by subtracting 14 from both sides and therefore getting 2x-14=y. For the next one, we can subtract 4x from both sides to get 10-4x=2y. Dividing both sides by 2, we get 10-2x=y. Since for the equations to be parallel they must be the same and for perpendicular they must be -1/(slope), this fits neither.
Using those two explanations, I implore you to solve the other two on your own!
Answer:
222
Step-by-step explanation:
1114-5646
<h3><u>Answer;</u></h3>
<h3><u>Explanation;</u></h3>
- An isosceles triangle is a type of triangle which has two sides equal, the base angles of this triangle are also equal or congruent.
- From the Isosceles triangle theorem, the perpendicular bisector of the base of an isosceles triangle also bisects the vertex angle. Thus, SR = RQ and ∠STR = ∠QTR .
- Thus; angle QRT is right angled, as TR acts as a perpendicular bisector of the base. Also SRT =QRT
