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mestny [16]
3 years ago
5

2x + y + z = 9 -x-y +z = 1 3x - y +z=9

Mathematics
1 answer:
DiKsa [7]3 years ago
3 0

Answer:

603 hope this helps

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It took emily 25 min to rideHer bicycle to the repair shop in one hour and 15 minutes to walk back home. If Emily her bicycle to
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Answer:the repair shop is 5km from her house.

Step-by-step explanation:

Let x represent the distance of the repair shop from her house.

Let y represent Emily's speed when riding.

Distance = speed × time

It took Emily 25 min to ride her bike to the repair shop. Converting 25 min to hours, it becomes 25/60 = 5/12 hours.

Distance covered,

x = y × 5/12 = 5y/12

It took her 1h 15 min to walk back home. Converting to hours, it becomes 1 + 15/60 = 1 1/4 = 5/4

If she can ride her bike 8km/h faster than she can walk, it means that her speed while walking would be y 8 8

Therefore,

Distance covered,

x= 5/4(y - 8) = (5y - 40)/4

Since the distance remains the same, then

5y/12 =(5y - 40)/4

Crossmultiplying, it becomes

5y × 4 = 12(5y - 40)

20y = 60y - 480

60y - 20y = 480

40y = 480

y = 480/40 = 12

x = 5y/12 = 5 × 12/12 = 5 km

6 0
3 years ago
What is the quotient of 17 and x
GenaCL600 [577]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
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What are the two consecutive integers of 134?
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Which quantity is proportional to 65/5?<br><br> 130/15<br> 13/1<br> 195/15<br> 260/10<br><br> 130/10
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