All categories

2 years ago

Hezekiel runs 1000 m at a rateof 3 minutes per km. how long does he take to run 500 m

Mathematics

1 answer:

lana66690 [7]2 years ago

3 0

Step-by-step explanation:

1 km = 1000 m

(hence the term "kilo" which means 1000).

so. he runs 1000 m at the rate of 3 minutes per km, that means 3 minutes per 1000 m.

now, we can see the solution already with our eyes.

but let's do it formally :

the rate or ratio between time and distance must be the same for the same speed.

so,

3 min / 1000 m = x min / 500 m

500 m × 3 min / 1000 m = x min

1/2 × 3 min = x min

3/2 = 1.5 min = x min

so, it takes him 1.5 minutes (90 seconds) to run 500 m.

You might be interested in

C. Find the value of x below:<br> 15.r + 5<br> -2 + 16.

nydimaria [60]

Answer:

Step-by-step explanation:

(15x + 5) and (-2 + 16x) represents the measures of corresponding angles.

Measures of corresponding angles are equal.

Therefore,

- 2 + 16x = 15x + 5

16x - 15x = 5 + 2

x = 7

5 0

3 years ago

here is the histogram of a data distribution. all class widths are 1. which of the following is the closest to the median of thi

Alborosie

The value of the median of the distribution is closest to 5.

<h3>What is the median?</h3>

A histogram is used to represent data graphically. the histogram is made up of rectangles whose area is equal to the frequency of the data and whose width is equal to the class interval.

The median is the number at the center of a dataset when the dataset is arranged in either ascending or descending order.

The numbers arranged in ascending order is : 2, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 9

Median = 5

Please find attached an image of the histogram. To learn more about histograms, please check: brainly.com/question/14473126

#SPJ1

7 0

2 years ago

The formula for the surface area of a right rectangular prism is A  2lw  2hw  2lh, where l, w, and h represent the length, wi

Thepotemich [5.8K]

Answer:

The term 2lw is independent of the height

Step-by-step explanation:

This formula is usually obtained reasoning like this: the rectangular prism has 6 faces, thus the surface area is the sum of the areas of these faces.

2 faces are l×w rectangles, so their area is lw+lw=2lw. Note that we are not using the height to compute the area, then this is the independent term.

The 4 remaining rectangles involve the height as one of their dimensions, so their areas (2hw+2lh) depend on the height.

8 0

3 years ago

Kaylin buys a greeting card for $3.79. she then buys 4 postcards that all cost the same amount. the total cost is $5.11. how muc

Pie

Answer:

Step-by-step explanation:

Givens

Greeting Card = 3.79

Total Cost = 5.11

Post cards = x

Equation

Total Cost = Greeting Card + 4x

Solution

Substitute the gives into the equation

5.11 = 3.79 + 4x Subtract 3.79 from both sides

5.11 - 3.79 = 3.79 - 3.79 + 4x Combine

1.32 = 4x Divide by 4

1.32/4 = 4x/4

x = 33

Each post card costs 0.33 dollars

4 0

2 years ago

Solve for e<br><br> 7(2e−1)−3=6+6e

creativ13 [48]

Answer:

there is no solution

Step-by-step explanation:

8 0

3 years ago

Hezekiel runs 1000 m at a rateof 3 minutes per km. how long does he take to run 500 m​

Hezekiel runs 1000 m at a rateof 3 minutes per km. how long does he take to run 500 m