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2 years ago

10

Mr. Tram was planning his trip from Dallas, TX to Detroit, MI. He knows that the total distance he needs to cover is 1620 km. He

usually drives at a speed of 60 km per hour.

1 answer:

Alinara [238K]2 years ago

4 0

Answer:

27 hours

Step-by-step explanation:

1620 divided by 60 = 27

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What does 3,146 round to nearest thousand

Lisa [10]

3 is in the thousands
so the answer is 3000

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3 years ago

What is the difference between a number a and 6 written in a expression

iVinArrow [24]

Answer:

x-6

Step-by-step explanation:

Let the number be x then the difference would be x-6

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2 years ago

3y-6 divided by 9 = 4-2 divided by -3

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I believe the answer is 16/9

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2 years ago

Read 2 more answers

The sum of 5 consecutive even numbers is 100. What is the first number in this sequence?

gayaneshka [121]

Answer:

16

Step-by-step explanation:

Let's represent this with an equation, where x is the first number. The next number must be x+2, because it has to be even, not x+1, and the rest continue the same way:

x+(x+2)+(x+4)+(x+6)+(x+8) = 100

Solve for x.

5x+20 = 100

5x = 80

<u>x = 16</u>

4 0

3 years ago

In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr

Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

$Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45$

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

$\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9$

Hence, the boat's speed in still water is 9 mph

7 0

3 years ago