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DaniilM [7]
3 years ago
6

Fiona needs $62 to go on a field trip. She has saved $10.50. She earns $6.50 per hour cleaning her neighbor's garden, and she ea

rns $5.25 per hour selling cakes at a store. Can Fiona go on the field trip if she works at the garden for 6 hours and at the store for 2 hours?
Mathematics
2 answers:
Katyanochek1 [597]3 years ago
8 0
(6.50 x 6)+(5.25 x 2)+10.50=60
No, unfortunately, she can't go on the field trip. She is off by two dollars.
diamong [38]3 years ago
3 0
$39 for gardening
$10.5 for store
39 + 10.5 + 10.5 = 60
Fiona wouldn't be able to go on the field trip 
Hope this helps!
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The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 73 minutes and a standard devi
Vesnalui [34]

Answer:

(a) X\sim N(\mu = 73, \sigma = 16)

(b) 0.7910

(c) 0.0401

(d) 0.6464

Step-by-step explanation:

Let <em>X</em> = amount of time that people spend at Grover Hot Springs.

The random variable <em>X</em> is normally distributed with a mean of 73 minutes and a standard deviation of 16 minutes.

(a)

The distribution of the random variable <em>X</em> is:

X\sim N(\mu = 73, \sigma = 16)

(b)

Compute the probability that a randomly selected person at the hot springs stays longer than 60 minutes as follows:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-73}{16})\\=P(Z>-0.8125)\\=P(Z

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly selected person at the hot springs stays longer than an hour is 0.7910.

(c)

Compute the probability that a randomly selected person at the hot springs stays less than 45 minutes as follows:

P(X

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly selected person at the hot springs stays less than 45 minutes is 0.0401.

(d)

Compute the probability that a randomly person spends between 60 and 90 minutes at the hot springs as follows:

P(60

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly person spends between 60 and 90 minutes at the hot springs is 0.6464

6 0
3 years ago
What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 4x + y + 1 = 0?
Bezzdna [24]

Answer:

The answer is

<h2>4x + y - 6 = 0</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where m is the slope

c is the y intercept

4x + y + 1 = 0

y = - 4x - 1

Comparing with the above formula

Slope / m = - 4

Since the lines are parallel their slope are also the same

That's

Slope of the parallel line is also - 4

Equation of the line using point ( 1 , 2) is

y - 2 = -4(x - 1)

y - 2 = - 4x + 4

4x + y - 2 - 4

We have the final answer as

<h3>4x + y - 6 = 0</h3>

Hope this helps you

7 0
3 years ago
Fill in the blanks in the following proof, which shows that the sequence defined by the recurrence relation
lawyer [7]

Answer:

srry

Step-by-step explanation:

6 0
3 years ago
Jen ran 3/4 mile in 18 minutes at 9 am and 2 1/4 miles in 27 minutes at 6 pm. Is this proportional or non proportional?
VMariaS [17]

Answer:

It's non-proportional

Step-by-step explanation:

You could tell every 1/4 mile is 6 minutes, so every other number should be a multiple of 6 if it is a multiple of 1/4. 27 is not a multiple of 6.

7 0
2 years ago
Ms. Claudio and Ms. yee took their students to the winter festival. There were a total of 68 students in attendance. In group A
svetlana [45]

Answer: 407.25

Step-by-step explanation:

23 x 6.75 =155.25     25 x 4.50 = 112.50       20 x 6.75+4.50=139.50    112.50+155.25+139.50= 407.25  HOPE IT HELPS!!! : )

7 0
2 years ago
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