Solve for x: 4(x + 5) = 3(x - 2) -2(x + 2) I’ll mark brainiest I need an answer ASAP
2 answers:
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Answer: at most 15 pairs of socks
Step-by-step explanation:
Let the number of pair of socks of her sister be , and let the number of pairs Lucy has be
.
Since , Lucy has 4 more than 1/3 the number of pairs of socks as her sister, this means that
.............................. equation 1
Also , Lucy has at most 9 pairs of socks , this means that
....................................... equation 2
Equating the two equations , we have
multiply through by 3
subtract 12 from both sides
Therefore , the sister has at most 15 pairs of socks
Answer:
x =
Step-by-step explanation:
The altitude of the triangle must equal 4 because it is a right triangle with another leg of 3 and a hypotenuse of 5 (reason is due to the pythagorean theorem)
Therefore, the triangle on the right has legs of 4 and 7 and, again, use the phythagorean theorem to find 'x' (the hypotenuse)
+
=
16 + 49 =
65 =
x = sq rt 65