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umka21 [38]
2 years ago
8

She ran 52.16 seconds per 400 meters how many seconds did it take her to run 100 meters?

Mathematics
1 answer:
Xelga [282]2 years ago
5 0

Answer:

13.04

Step-by-step explanation:

since 100 is 1/4 of 400, you divide 52.16 by 4

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If there are about 1 2/5 kilometers in 1 mile,about how many kilometers are in 4 miles?
-BARSIC- [3]
<span>This problem is an example of ratio and proportion. A ratio is a comparison between two different things. You are given the equivalent distance of a 1 2/5 kilometers to 1 mile. Also you are given 4 miles. You are required to find the distance in kilometers of 4 miles. The solution of this problem is,</span>  

1 2/5 kilometers /1 mile = distance/ 4 miles
distance = (4 miles) (1 2/5 kilometers /1 mile)
<u>distance = 28/5 or 5.6 kilometers</u>
<u>There are 5.6 kilometers in 4 miles.</u>
7 0
2 years ago
What is -4 x 8 x n simplified?
Galina-37 [17]

Answer:

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Step-by-step explanation:

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2 years ago
If two marbles are randomly selected from the bag without replacement, what is the probability that the first marble is blue?
joja [24]

Answer:1,0.5, or 0 it depends

Explanation:

The probability that one event occurred depends on the total of random event, being 1 the most of the probabilities

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P=1 - 1/2=1/2

Being 1/2 or 0.5 the answer

If any of the marbles are blue then the probabilities are 0

8 0
3 years ago
What is the slope of the line? Please help :)
Anuta_ua [19.1K]

Answer:

The slope of line is 2/3.

Step-by-step explanation:

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y2 - y1 / x2 - x1

6 0
3 years ago
Read 2 more answers
A company makes a profit of $50 per software program and $35 per video game. the company can produce at most 200 software progra
Neko [114]
Let x = software program
Let y = video game

x < 200 ; y < 300

x + y < 425

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x = 200 ; y = 225
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x = 125 ; y = 300
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x = 175 ; y = 250
50(175)  + 35(250) = 8,750 + 8,750 = 17,500

It is more profitable to maximize production of software program when working within the limits provided.
4 0
3 years ago
Read 2 more answers
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