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torisob [31]
3 years ago
14

Please help me with this question!

Mathematics
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

12 miles

Step-by-step explanation:

Let the amount of hours it takes Leroy to catch up to Kevin equal x. Since speed multiplied by time is distance, Leroy would have run a total of 6x miles(6*x). Kevin already had a head start of 24 minutes, which is the same as 2/5 of an hour. In 2/5 an hour, Kevin ran 2 miles as 2 is 2/5 *5. For the next x hours his distance would be a total of 5x(5*x). This means, after x hours, Kevins distance is 5x + 2. In this case, catching up to someone is the same as having the same distance value. This means we can set the two expressions equal to each other, and solve:

6x = 5x + 2

x = 2

The time it took Leroy to catch up is 2 hours, but we are looking for the distance, which is represented by 6x. We substitute in 2 to get:

6(2) = 12

This means Leroy had to run 12 miles.

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In a school,2/3 of the students study a language.
Cloud [144]

Answer:

The ratio is 4/11

Step-by-step explanation:

Let

x ----> the total number of students in a school

we know that

1) 2/3 of the students study a language.

so

(2/3)x ----> number of students studying a language

and

x-(2/3)x=(1/3)x ---->number of students who do not study a language

2) Of those who study a language 2/5 were studying french

so

(2/3)x(2/5)=(4/15)x ----> number of students studying French

and

(2/3)x(3/5)=(6/15)x ----> number of students studying a language but not studying French

3) we know that

The number of students who do not study French is equal to the number of students who do not study a language plus the number of students who study a language but do not study French.

(1/3)x+(6/15)x=(11/15)x ----> number of students who not study French

(4/15)x ----> number of students who study French

4 ) Find the ratio of students who study french and who do not

(4/15)x/(11/15)x=4/11

7 0
3 years ago
Pls solve both and show ur answers :))
yawa3891 [41]
Number 3 is x=5 and number 4 is x=63
6 0
3 years ago
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Find the zeros and the axis of symmetry of the parabola.PLEASE HELP PLEASE
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The zeroes are where the parabola will meet the x-axis. The axis of symmetry pretty much just splits your parabola equally in half.
3 0
3 years ago
The circumference of a circular garden is 138.16 feet. What is the radius of the garden? Use 3.14 for it and do not round your a
kobusy [5.1K]

Answer:

11 feet

Step-by-step explanation:

6 0
3 years ago
How much is 12 + 6?<br> and how much 7+7+12?<br> Please help me
kolezko [41]
<h2>Answer:</h2>

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Add Them:

12 + 6 = <u>18</u>

7 + 7 + 12

Add Them:

7 + 7 + 12 = <u>2</u><u>6</u>

6 0
3 years ago
Read 2 more answers
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