Y = - 2x - 1
divide everything by 5 and get 2x + y = -5
move the 2x to the right and end up with
y = - 2x - 1
Since the precision of the voltmeter is <span>±0.005 V, the effective value range for the first measurement is 9.000 V to 9.010 V, for the second it is 9.001 V to 9.010 V, the third 9.013 V to 9.023 V and the fourth 9.021 V to 9.030 V. From all of these measurements the only one which the accepted value falls within the range is measurement 3.</span>
1/6 x 1/6 multiply these two together because you have the probability 1/6 of the time each roll of the dice and you have 2 of them
Answer:
45 people prefered coffee, 81 people prefered tea. A total of 126 people were surveyed.
Step-by-step explanation:
Let t be the people who prefer tea, and let c be the people who prefer coffee.
The ratio between tea and coffee is 9:5, thus we have t/c=9/5. Cross products give us 5t=9c.
Also, we have 36 more people prefer tea than coffee, so we have c+36=t
Thus we have: 5(c+36)=9c
5c+180=9c
180=4c
c=45
c+36=t
45+36=81
Answer: A) 50 Minutes
(0.35 * 50) + 40 = 57.5
(0.65 * 50) + 25 = 57.5
57.5 = 57.5
