A = 210 + 20(h - 7) <== ur equation
if she earns 410 tutoring...
410 = 210 + 20(h - 7)
410 = 210 + 20h - 140
410 = 20h + 70
410 - 70 = 20h
340 = 20h
340/20 = h
17 = h <=== she spent 17 hrs tutoring
(9,-4) you have to plugin 9 to the equation in the form of x. Then you add 5 and that would be your y value
<span>Levant traded 270 american dollars and received 3000 Mexican pesos. This means that:
1 Mexican peso = (270 x 1) / (3000) = 0.09$
Therefore,
100 pesos will be worth 100 x 0.09 = 9$
Based on this, he will receive 9$ when exchanging 100 pesos for dollars.</span>
Length is equal to 4 and width is equal to 5.
You can just divide each by 2.
Let f(x) = y = 5x - 7. Then f(3) = 5(3) - 7 = 8, and f(8) = 5(8) - 7 = 33
Then the ave. r. of c. of f(x) = 5x - 7 from x = 3 to x = 8 is
33 - 8 25
----------------- = -------- = 5 (answer)
8 - 3 5
