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Otrada [13]
3 years ago
14

Jose is training for a half -marathon .Each week he runs x miles per day for 5 days .For 3 days of the week he runs at a speed o

f 8 minutes per mile .For 2 days he runs 7-minute miles. Write an expression to represent the amount of time,in minutes,that jose runs in 4 weeks
Mathematics
1 answer:
vitfil [10]3 years ago
5 0

Answer:

152x miles

Step-by-step explanation:

Jose runs x miles per day each week for 5 days.

For 3 days of the week he runs at a speed of 8 minutes per mile. So we have

3*8*x = 24x

For 2 days he runs 7 minutes per miles. We have

2*7*x = 14x

in one week, he runs 24x + 14x = 38x

In 4 weeks, he runs

4*38x = 152x miles

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poizon [28]

Let x = Horseback riding and y = Parasailing

Eq. 1

3x + 2y = 192

Eq. 2

2x + 3y = 213

By elimination:

<span>     2(3x + 2y = 192)</span>

+ -3(2x + 3y = 213)

<span>              -5y = - 255</span>

y = $ 51

Substitute y :

3x + 2y = 192

3x + 2(51) = 192

<span>x = $ 30
</span>


<span>Hope this answer will be a good help for you.</span>

3 0
4 years ago
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
Is 4:5 (4/5) less, or greater than 19:30 (19/30)?
liberstina [14]
4/5 is greater because when you times it by 6 the numerator becomes 24 therefore it is greater
6 0
4 years ago
Read 2 more answers
Solve for X <br><br>Explain if possible :)
sweet-ann [11.9K]

The two labeled angles are alternate interior angles, and as such, they are the same.

From this result you can build the equation

15x-2 = 13x+2

and solve it for x: subtract 13x from both sides to get

2x-2=2

and add 2 to both sides to get

2x = 4 \implies x = 2

Check: if we plug the value we found we have

13\cdot 2 + 2 = 26+2 = 28 = 15\cdot 2 - 2 = 30-2

So the angles are actually the same, as requested.

4 0
4 years ago
Does 5mm, 1mm, 10mm make a triangle
pogonyaev

Answer:

Step-by-step explanation:

No. Each side must be less than the sum of the remaining two sides.

10 ≮ 5+1

6 0
3 years ago
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