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Alenkasestr [34]
3 years ago
7

A Boxerville Express commuter train leaves the station every 30 minutes. When Theo arrives at the station, a woman tells him she

has been waiting for 12 minutes and has not yet seen a train. If the variable T stands for the amount of time Theo will have to wait, which of the following units could apply to this variable?
A. passengers
B. trains
C. minutes
D. miles per hour​
Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0
I believe the answer would be D
Dmitrij [34]3 years ago
4 0
Answer: D

The answe is just simply D because of the minutes when it adds up is almost the same as MPH
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7 0
2 years ago
1. The sum of the three consecutive members of the geometric sequence is 13. The proportion of the third and the first member is
aev [14]
If a = first term and r = common ratio we have

a + ar + ar^2 = 13   and ar^2 / a = r^2 = 9

so r = 3

and a + 3a + 9a = 13 
so a = 1

so they are  1,3 and 9 

2.
in geometric series we have

4 , 4r ,4r^2 , 60

Arithmetic;
 4,  4r , 4r + d ,  4r + 2d

so we have the system of equations
4r + 2d = 60
4r^2 = 4r + d
From first equation
2r + d = 30 
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Substitute for d in second equation:-
4r^2 - 4r - (30-2r) = 0
4r^2 - 2r - 30 =0

2r^2 - r - 15 = 0
(r - 3)(2r + 5) = 0
r  = 3 or -2.5
r must be positive so its = 3
and d = 30 - 2(3) = 24

and the numbers are 4*3 =  12 , 4*3^2 = 36

first 3  are  4 , 12 and 36  ( in geometric)
and last 3 are 12, 36 and 60  ( in arithmetic)

The 2 numbers we ause are 12 and 36.





7 0
3 years ago
Consider this figure. Enter the measure of
kotykmax [81]

Step-by-step explanation:

4x + 7x + 2° = 90° { being complementary angles }

11x = 90° - 2°

11x = 88°

x = 88° / 11

x = 8°

<YVZ = <em>7</em><em> </em><em>*</em><em> </em><em>8</em><em>°</em><em> </em><em>+</em><em> </em><em>2</em><em>°</em><em> </em><em>=</em><em> </em><em>5</em><em>8</em><em>°</em>

<em>Hope </em><em>it </em><em>will </em><em>help </em><em>:</em><em>)</em>

3 0
3 years ago
Read 2 more answers
Justin has a roll of tape 549 centimeters long. he cuts the tape into pieces that are 9 centimeters long. How many 9 centmeter p
Olenka [21]

Answer:

61

Step-by-step explanation:

5 0
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