Two angles with measures (6x + 60) and (90) are supplementary. What is the value of x?

Answers

Answer 1

Answer: Supplementary angles add up to 180, so
6x+60+90 = 180 and solve for x
6x= 30
x=5

Answer 2

Answer: supplementary means that the angles add to 180, so solve the equation 6x+60+90=180. 6x=30 x=5

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As the train’s engineer, Erin guided the train on a 64 mi run, which took 1.7 h. She then stopped on a side rail to let a second train pass. She then continued another 80 mi, which took 1.9 h.What was the train’s average speed for the entire run?

Answers

$(144 miles)/(3.6 hours)= 40 (m)/(h)$ Let's calculate how many miles the train has passed in total:
64+80=144 miles

let's also calculate the complete time: (we can ignore the waiting time here, since they also didn't move during this time:

1.7h+1.9h=3.6 hours.

And now we only need to divide the distance per time:

So the correct answer is 40 miles per hour!

What is the value of the number 6 in 0.061

Answers

the 6 in that number is in the hundredths place, so the value is 0.06. :) Hope this helped! Mwah!

At a restaurant you order a lunch that cost $6.50 and a beverage that cost $1.50. You leave a 20% tip, how much money did you leave as the tip

Answers

$1.6, 20% of $8 ($6.5+$1.5) is $1.6

Answer:

.30

Step-by-step explanation:

6.50+1.50+20%=8.30

6.50+1.50=8

8+.3=8.30

so 6.50+1.50+.30=8.30

you left .30 cent as a tip to the waiter.

Zachary completes a hypothesis test and finds that he rejects the null hypothesis. Which statement gives a reason for rejectingthe null hypothesis?
The Z-statistic is less than 0.
The z-statistic lies in the critical region.
The Z-statistic lies outside the critical region.
The z-statistic is greater than 0.

Answers

Answer:

The z-statistic lies in the critical region

Step-by-step explanation:

When a hypothesis test is performed, the decision to reject or not reject the null hypothesis is made on basis of following observations:

If the z-statistic falls in the critical or rejection region, there is enough evidence to reject the Null Hypothesis
If the z-statistic falls outside the critical or rejection region, there is not enough evidence to reject the Null Hypothesis.

In the given statement Zachary rejects the Null Hypothesis, this means the z-statistic she calculated must have been inside the critical or rejection region. Hence the correct answer would be:

The z-statistic lies in the critical region

Answer: b) The z-statistic lies in the critical region.

ed21

Please and thank you for helping !

Answers

Answer:

9 D and 10 B

Step-by-step explanation:

The conditional is what is next to IF and the hypothesis is what you expect in this case you expect it to be a whole number and a integer

Mason worked 24 hours at the book shop at an hourly rate of $8.75. How much Medicare tax will be deducted from his paycheck this week? (Medicare tax is a fixed tax of 1.45% of a person’s gross pay.) A. $8.82 B. $210.00 C. $196.45 D. $3.05

Answers

c. $196.45 is the amswer

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