Answer:
No because No one will brianliest me
Step-by-step explanation:
Answer:
a = 2
Step-by-step explanation:
Given equation:
now,
considering the LHS
⇒
or
⇒
or
⇒
now,
substituting the result in the original equation, we get
⇒
or
⇒ 2a =
or
⇒ 2a = 4
or
a = 2
Remark
Please number your pairs of equations going from left to right. The pair on the extreme left is (1) and the pair on the extreme right is (5).
(1)
If you multiply to top member of the pair by 2, you will get the bottom equation of the pair. What that tells you is that there are many (infinite) numbers of solutions.
(y = 3x + 4) * 2 remove the brackets.
2y = 6x + 8 Exactly the same equation as the bottom one = infinite solutions.
(2)
If the slopes are the same (both are -1) and the y intercepts are different (0,-2) and (0,-6) then the lines are parallel (they never meet) and have no solutions.
(3)
If the slopes are different, there is one solution. (9 and 1) There is one solution.
(4)
Four gives 1 solution as well at 0,0. That is because the slopes are different.
(5)
trick question. the slopes are quite different. one is 0 and the other is undefined. They meet at one point.(-6,-3). I solution.
First we need to find whats the rate for 1 dollar
since 48 dollars for 6 hours
then for 1 dollar = 6/48 = 0.125
since 68 dollars for 8.5 hours
then for 1 dollar = 8.5/86 = 0.125
So both gave the rate to be 0.125
then for 32 hours it will be = 0.125 x 32 = 4
So Taylor will have to babysit for 4 hours to earn 32 dollars