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aivan3 [116]
2 years ago
12

a marathon runner completes a 42km course at an average speed of 7km/h calculate the time taken to complete the course.

Mathematics
1 answer:
Ahat [919]2 years ago
5 0

Answer:

6 hours

Step-by-step explanation:

42/7=6h

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The price of a stock dropped 20% in one month the following month it’s price increased by 20% is the stock above or below it’s s
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The price of the stock is below its starting price because the price will decrease before it increases
5 0
3 years ago
Solve the inequality <br> 5x+2 &lt; 32
AnnyKZ [126]

Answer:

x<6

Step-by-step explanation:

First, let's work on the left hand side of your inequality, the 5x+2

This means, for instance, to see if it can be simplified at all.

Multiply x and 5

Multiply x and 1

The x just gets copied along.

The answer is x

x

5*x evaluates to 5x

5*x+2 evaluates to 5x+2

So, all-in-all, the left hand side of your inequality can be written as: 5x+2

Now, let's work on the right hand side of your inequality, the 32

The right hand side of your inequality can be written as: 32

So with these (any) simplifications, the inequality we'll set out to solve is:

5x+2 ‹ 32

Move the 2 to the right hand side by subtracting 2 from both sides, like this:

From the left hand side:

2 - 2 = 0

The answer is 5x

From the right hand side:

32 - 2 = 30

The answer is 30

Now, the inequality reads:

5x ‹ 30

To isolate the x, we have to divide both sides of the inequality by the other "stuff" (variables or coefficients)

around the x on the left side of the inequality.

The last step is to divide both sides of the inequality by 5 like this:

To divide x by 1

The x just gets copied along in the numerator.

The answer is x

5x ÷ 5 = x

30 ÷ 5 = 6

The solution to your inequality is:

x ‹ 6

8 0
2 years ago
Read 2 more answers
Martin is saving for a gaming system. The total cost of the gaming system and three games is $325.49. About how much money shoul
aksik [14]
First you would do $325.49 divided by 10 and you would get $32.55. so you would need $32.55 a week. 
6 0
3 years ago
If a person can walk with an average speed of 5 meters/second, how far will they walk in 8 minutes?
sineoko [7]

Answer:

2,400

Step-by-step explanation: If a person can walk 5 meters per second and there are 60 seconds in a minute then you would multiply 5 by 60 and get 300. Then you multiply that by 8 and get 2,400.

5 0
3 years ago
Read 2 more answers
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
MAXImum [283]

Answer:

  • x = 15/p
  • x = -3

Step-by-step explanation:

<u>Given expression</u>

  • 4(px+1)=64

<u>Solving for x</u>

  • 4px + 4 = 64
  • 4px = 60
  • px = 15
  • x = 15/p

<u>Value of x when p= - 5</u>

  • x = 15/(-5) = -3
3 0
2 years ago
Read 2 more answers
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