Answer:
59.5
Step-by-step explanation:
42.50/5=8.5
1 lb=8.5
7lb=7*8.5=59.5
Answer:
the order is -1, 0, 1/2, 1.7
Supposing the temperature of 60 degrees increases twice, it becomes 120 degrees (100% increase) and the bottles increase twice as well to 150 bottles (100% increase).
If there are 120 bottles used, we can calculate the temperature using the above assumption when bottle usage increase to 100% which is 150 bottles.
120 bottles/ 150 bottles = 0.8 or 80%
So, if 100% increase in temperature is defines by 120 degrees, what is 80% of 120 degrees?
Then 120 degrees divided by 0.8 will result to 96 degrees (so the answer is letter D) -- the temperature when 120 bottles were used by athletes.
Its pretty simple
9x-7y = 22
x + 3y = -24
(9x-7y = 22)
-9(x + 3y = -24)
= -9x -27y = 216
+ 9x-7y = 22
= -34y = 238
= / -34 = 238/-34
y = -7
now plug -7 in one of the equation
x + 3(-7) = -24
x -21 = -24
+21. +21
x = -3
so answer is x = -3 and y = -7
150 can't go into 180 equally, so the answer is 1.2
