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Shkiper50 [21]
2 years ago
6

(25x - 15)° What is the value of x

Mathematics
2 answers:
maxonik [38]2 years ago
8 0

Answer:

5x-3?

Step-by-step explanation:

Bond [772]2 years ago
4 0

Answer: 5x-3

Step-by-step explanation:

(25x-15)

25/5x-15/5

5x-3

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The speed limit is 25 miles per hour, but it seems that many of the cars are going faster. The city places 2 counter strips 360
klio [65]
You figure out how long it would take a car traveling at 25 mph
to cover 360 ft.  Any driver who does it in less time is speeding.

           (25 mi/hr) · (5,280 ft/mile) · (1 hr / 3,600 sec)

       =    (25 · 5280 / 3600)  ft/sec  =  (36 and 2/3) feet per second.

To cover 360 ft at 25 mph, it would take

                360 ft / (36 and 2/3 ft/sec)  =   9.82 seconds .

Anybody who covers the 360 feet in less than 9.82 seconds
is moving faster than 25 mph.
_________________________________

If you're interested, here's how to do it in the other direction:

Let's say a car covers the 360 feet in ' S ' seconds.
What's the speed of the car ?

           (360 ft / S sec) · (1 mile / 5280 feet) · (3600 sec/hour)

       =    (360 · 3600) / (S · 5280)  mile/hour

       =        245.5 / S    miles per hour .

The teacher timed one car crossing both strips in 7.0 seconds.
How fast was that car traveling ?

                   245.5 / 7.0  =  35.1 miles per hour


Another teacher timed another car that took 9.82 seconds to cross
both strips.  How fast was this car traveling ?

                        245.5 / 9.82  =  25 miles per hour
7 0
3 years ago
Select the correct answer.
Igoryamba
C i think if I’m not mistaken
5 0
3 years ago
In a survey, 99 out of 100 people are not left-handed. what proportion of people are left-handed according to this survey?​
Mnenie [13.5K]

Answer:

1 out of 100

Step-by-step explanation:

99 out of 100 people are NOT left-handed, that means they are right handed. 100-99=1

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Step-by-step explanation:

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Answer:

A

Step-by-step explanation:

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2 years ago
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