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3 years ago

Help me please again :))

Mathematics

2 answers:

Sophie [7]3 years ago

7 0

Answer:

x= 15

Step-by-step explanation:

85 and 6x+5 form a straight line.

They sum to 180

85+ 6x+5 = 180

Combine like terms

90 +6x = 180

Subtract 90 from each side

90+6x-90 = 180-90

6x = 90

Divide each side by 6

6x/6 = 90/6

x =15

RoseWind [281]3 years ago

6 0

Answer: x = 15

Step-by-step explanation: since it's a straight line so it's 180 degrees

so 6x + 5 = 95

6x = 90

x = 15

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Answer:

Step-by-step explanation:

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3 years ago

The distance between the cities Atlanta and Indianapolis is 540 miles. A motorcycle's speed is 48 mph. For a car it takes 2.25 h

WITCHER [35]

Answer:

It will take them 5 hours to meet if they start moving towards eachother simultaneusly.

Step-by-step explanation:

Distance, s = 540 miles

Motocycle's speed, v = 48 mph

Time for motorcycle to cover 48 miles, t = $\frac{Distance}{Speed}$

= $\frac{540}{48}$ = 11.25 h

For a car it takes 2.25 hours less than 11.25 for motorcycle:

Time for car than becomes: 11.25 - 2.25 = 9 h

Speed for car would be v(c) = $\frac{Distance}{Time}$

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<em>For finding when they will meet, we will need relative speed: </em>

Since they are moving towards each other the relative speed is the sum of speed of car and the speed of motorcycle

Relative Speed = 48 + 60 = 108 mph

Distance = 540 miles

Time = $\frac{Distance}{Speed}$

= $\frac{540}{108}$

= 5 hours

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3 years ago

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trasher [3.6K]

Answer:

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3 years ago

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Rudiy27

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