Answer:
Step-by-step explanation:
The given expression is the sum of three non-negative expressions. The square is zero or positive, the absolute value is zero or positive.
<u>Since the sum is zero, each of the expressions should equal zero:</u>
- 2x + 5y - 7 = 0
- 4x - 2y = 0
- 5x - 1/2y + k = 0
<u>From the first 2 equations we get:</u>
- 4x = 2y ⇒ y = 2x
- 2x + 5(2x) = 7
- 12x = 7
- x = 7/12
<u>Find the value of y:</u>
<u>Substitute the values into third equation and find the value of k:</u>
- 5x - 1/2y + k = 0
- 5*7/12 - 1/2(7/6) + k = 0
- 35/12 - 7/12 = - k
- 28/12 = - k
- 7/3 = - k
- k = - 7/3
480 x 0.3 = 144 (pages read)
(Next page) 144 + 1 = 145
145 is your answer
Hey! If there is 33 people in total and 13 males, just subtract 13 from 33 to get 20 And that’s your amount of females.
That is true. It is much cheaper and economically safer for farms to not grow organic foods. I’m fact, sometimes it is even better for the environment for food to not be grown organically as it puts less stress on the farmland.
32 because all u need to do is add thirty two plus 15 and you’ll get thirty two