<u>218 kilometros</u>
12 x 5 = 60
8 x 15 = 120
60 + 120 + 38 = 218
¡Espero que esto ayude! ¡Buena suerte!
Step-by-step explanation:
I have used substitution method here to find the value of x and y.
Let the length and width be l and w, respectively. Then, perimeter = 2(l + w) = 40, and area = lw = 96. In other words:
l + w = 20
lw = 96
From here, we could guess and check to get that the length and width are 12 and 8, but let’s do this rigorously:
By the first equation, l = 20 - w
Substituting into the second equation:
(20 - w) * w = 96
w^2 - 20w + 96 = 0
w^2 - 20w + 100 = 4
(w - 10)^2 = 4
w - 10 = 2 or -2
w = 12 or 8
The rest is trivial.
Answer:
x=3
Step-by-step explanation:
Isolate x.
Divide both sides by four
Take 
of both sides. In other words, what power must you raise 5 to in order to get 125? (
)
x=3
Answer:
6 weeks
Step-by-step explanation:
8 quizzes = 4 weeks
So 2 quizzes/week
It will take her 12/2 weeks (6) to finish 12 quizzes
-Chetan K
