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vitfil [10]
2 years ago
7

In the first two hockey games of the year, Rodayo played 1 1/2 periods and 1 3/4 periods. How many periods in all did he play? P

lease help
Mathematics
2 answers:
Talja [164]2 years ago
7 0

Answer:

Rodayo played 3 1/4 periods in all

Step-by-step explanation:

Anastasy [175]2 years ago
4 0

Answer:

3 1/4, or 4 periods if it’s rounded (which I think not)

Step-by-step explanation:

First, add the wholes 1 + 1 = 2

Next, add the fractions 1/2 + 3/4

Taking from that, you would have 13/4 all together, turning the wholes into fractions.

If your looking for decimals, it’s 3.25

You find the total by adding fractions

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Solve the inequality. <br><br>The solution is.... ​
MAVERICK [17]

Answer:

Step-by-step explanation:

-x - 6 > 21 - 28x

27x - 6 > 21

27x > 27

x > 1

8 0
3 years ago
When sales representatives for a pharmaceutical company drive out of town meetings that require an overnight stay, they receive
blsea [12.9K]
X=number of miles

$329=$175+$0.70x
329-175=.70x
154=.70x
154/.70=x
220miles =x
6 0
3 years ago
Read 2 more answers
You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confide
FrozenT [24]

Question:

You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If​ convenient, use technology to construct the confidence intervals. A random sample of 45 home theater systems has a mean price of ​$114.00. Assume the population standard deviation is ​$15.30. Construct a​ 90% confidence interval for the population mean.

Answer:

At the 90% confidence level, confidence interval = 110.2484 < μ < 117.7516

At the 95% confidence level, confidence interval = 109.53 < μ < 118.48

The 95% confidence interval is wider

Step-by-step explanation:

Here, we have

Sample size, n = 45

Sample mean, \bar x = $114.00

Population standard deviation, σ = $15.30

The formula for Confidence Interval, CI is given by the following relation;

CI=\bar{x}\pm z\frac{\sigma}{\sqrt{n}}

Where, z is found for the 90% confidence level as ±1.645

Plugging in the values, we have;

CI=114\pm 1.645 \times \frac{15.3}{\sqrt{45}}

or CI: 110.2484 < μ < 117.7516

At 95% confidence level, we have our z value given as z = ±1.96

From which we have CI=114\pm 1.96 \times \frac{15.3}{\sqrt{45}}

Hence CI: 109.53 < μ < 118.48

To find the wider interval, we subtract their minimum from the maximum as follows;

90% Confidence level: 117.7516 - 110.2484 = 7.5

95% Confidence level: 118.47503 - 109.5297 = 8.94

Therefore, the 95% confidence interval is wider.

8 0
3 years ago
Read 2 more answers
What is the square root of -1?
lys-0071 [83]

Answer:

i

Step-by-step explanation:

<u>Step 1:  Find the square root of -1</u>

<u />\sqrt{-1}

\sqrt{i^2}

i

Answer:  i

7 0
3 years ago
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John has $6.10 in quarters and nickels in his pocket. If John has 34 coins in his pocket, how many of the coins are quarters?
Luden [163]
34 = q + n
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-1.7 = -.05q - .05n
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4.4 = .2q
q = 22

22 of the coins are quarters.
7 0
3 years ago
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