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photoshop1234 [79]
3 years ago
15

11. The rates for the following math tutoring services are listed below.

Mathematics
2 answers:
fomenos3 years ago
7 0

Answer: A

Step-by-step explanation:

A) 50/ 45 = 1.111....

B) 65/60 = 1.08333...

C) 99/90 = 1.1

D) 90/120 = .75

Reptile [31]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Divide each amount by the number of minutes to find the rate per minute. Then multiply by 60 to find the hourly rate. Then compare the hourly rates.

A

$50 / 45 min * 60 = $66.66/hour

B

$65 / 1 hour = $65/hour

C

$99 / 90 min * 60 = $66/hour

D

$90 / 2 hours = $45/hour

Answer: A

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Rhombus J K L M is shown. The length of J K is 2 x + 4 and the length of J M is 3 x.
Dominik [7]

Answer:

12 units

Step-by-step explanation:

Properties of Rhombus:

1. length of all sides are equal.

2. Diagonals bisect each other at right angles

As the length of all sides are equal,

JM = JK

3x = 2x + 4

Subtract 2x from both sides,

3x - 2x = 4

       x = 4

JM = 3*4 = 12 units

5 0
3 years ago
Round to the nearest foot
scoundrel [369]

Answer:

347.2 ft ≈ c

Step-by-step explanation:

*The nearest tenth of a foot is 347.2 ft.

6 0
3 years ago
I'm stuck, please help me​
Sav [38]
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3 0
3 years ago
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A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion?
Ludmilka [50]

Answer:

B. 0.65

Step-by-step explanation:

Sample proportion is the point estimate of the population proportion which is at the centre of the interval

(0.62+0.68)/2

1.30/2

0.65

3 0
4 years ago
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a new flagpole needs to be 54ft high and the old flagpole is 15m high, how many meters taller does the new flag need to be? roun
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