Answer: a) $26.55/year
b) $64.13/year
Step-by-step explanation:
a) <u>$7.64</u> . <u>1 ft³</u> . <u>50 gal</u> . <u>1 load </u> . <u>52 week</u> = $<u>26.55</u>
100 ft³ 7.48 gal 1 load 1 week 1 year year
The total cost per year is $26.55
b)<u>$7.64</u> . <u>1 ft³</u> . <u>17.2 gal</u> . <u>1 shower </u> . <u>365 days</u> = <u>$64.13</u>
100 ft³ 7.48 gal 1 shower 1 day 1 year year
The total cost per year is $64.13
Answer:
3/2
Step-by-step explanation:
6 * _x___ = 9
Divide each side by 6
6 x __x__ = 9
x = 9/6
Simplify
x = 3/2
R could equal any number, but it has to be higher than 4, because 3+4=7.
Answer: x = -4 or x = 7
Step-by-step explanation:
x^2 - 3x - 28 =/>
(factor)
(x^2 + 4)(x-7) = 0
x + 4 = 0 or x - 7 = 0
(subtract -4 from 0 and 7 from 0)
x = -4 or x =7
