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Rudik [331]
3 years ago
10

multiply the hours of labor by $55, then add $80. if c = cost in dollars and h = hours of labor, which equation expresses the ru

le above?
Mathematics
1 answer:
Musya8 [376]3 years ago
3 0
Y=mx-c

y=55 x + 80
(x=hours)
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A signalized intersection has a cycle length of 70 seconds. For one traffic movement, the displayed all-red time is set to 2 sec
Marina CMI [18]

Answer:

the displayed green time for the traffic movement is 30 seconds

Step-by-step explanation:

Given the data in the question;

Cycle length; C = 70 seconds

Displayed all-red time; AR = 2 seconds

Displayed yellow time; Y = 5 seconds

Effective red time; r = 37 seconds

total lost time per cycle; t_L = 4 seconds

the displayed green time for the traffic movement; G = ?

First we determine the Effective green time ( g );

Effective red time; r = Cycle length; C - Effective green time ( g )

so,

Effective green time ( g ) = C - r

we substitute

Effective green time ( g ) = 70 seconds - 37 seconds

Effective green time ( g ) = 33 seconds

Now,

Effective green time ( g ) = displayed green time; G + Displayed yellow time; Y + Displayed all-red time; AR - total lost time per cycle; t_L

i.e

g = G + Y + AR - t_L

we substitute

33 = G + 5 + 2 - 4

33 = G + 3

G = 33 - 3

G = 30 seconds

Therefore, the displayed green time for the traffic movement is 30 seconds

7 0
3 years ago
What is the mean of these numbers?4,5,5,2,3,3,2,8
VladimirAG [237]

Answer:

4

Step-by-step explanation:

3 0
2 years ago
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WILL GIVE ALOT OF POINTS HELP FAST One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant
den301095 [7]

Answer:

4.4

Step-by-step explanation:

16.8 was for 4 hour

divide 4 by 16.8

you get 4.2 per hour

so you need 1 hour

1 hour would be 4.2

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Colt1911 [192]
The case is about proportional relatioship so to slove it you have to do this.
45(V)       ?
____  x  ____
60(V)      15

45*15=675
60*?=60
675 DIVIDE BY 60=11.25
so the answer is 11.25
hope it help you
thank you
:)
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3 years ago
How many Solution(s) does have 5=5? <br> Infinite, none, or one solution(s)?
Nataly [62]

Answer:

infinite solutions

Step-by-step explanation:

any equation that is like that has infinite solutions such as 7=7 or 2=2

8 0
3 years ago
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