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Vlada [557]
3 years ago
9

Please help me asap!!

Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

28/3

Step-by-step explanation:

We see that the triangles are simalar to eachother, so we can set up this ratio:

x/(8+x) = 7/13

x = 56/13 + 7x/13

13x = 56 + 7x

6x = 56

x=56/6=28/3

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The value of y varies jointly with the values of x and z When x = 4 and z = 10, the value of y is 360.
Igoryamba

Answer:

A

Step-by-step explanation:

Joint variation is given by:

y=kxz

Where k is some constant.

We are given that y = 360 when x = 4 and z = 10. Therefore:

360=k(4)(10)

Solving for k:

40k=360\Rightarrow k=9

Therefore, our equation is:

y=9xz

Then when x = 5 and z = 12:

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The answer is A.

3 0
3 years ago
after leaving home for school, it had taken you 15 minutes to walk 1000 feet. if your destination is a total of 1200 feet from h
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Answer: 3 min

Step-by-step explanation:

Step 1. Find the constant speed

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Step 2. Apply the constant speed to the left distance

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1200-1000=200 feet left

distance ÷ speed=time

200 ÷ (200/3)=3 min

Hope this helps!! :)

Please let me know if you have any question

4 0
3 years ago
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Tema [17]
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Answer:

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