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Helen [10]
2 years ago
7

4) For a long-distance race, it took 2.25 hours for the first runner to cross the finish line. It took 3 times as long for the l

ast runner to cross the finish line. How long did it take the last runner to cross the finish line? A) 5.25 hours B) 3 hours C) 2.25 hours D) 6.75 hours​
Mathematics
2 answers:
viva [34]2 years ago
6 0

Answer:

c

Step-by-step explanation:

I'm not sure but ya that's the whole answer

yawa3891 [41]2 years ago
5 0

Answer:

D) 6.75

Step-by-step explanation:

I multiplied 2.25 by 3 to get 6.75.

Have a good day!

Please rate and mark brainliest!

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irina1246 [14]

Answer:

1.89

Step-by-step explanation:

0.09+1.5+0.3

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54000/.6= 90000, so answer should be 90,000
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PLEASE HELP!!
lys-0071 [83]
The lines that intersect is B
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Mimo sper 56.24 for a new binder $195 for a notebook, and
viktelen [127]

Answer:

251.24$

Step-by-step explanation:

In order to find the answer to this question you just need to add the total cost together.

What we do know:

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Hope this helps.

7 0
3 years ago
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Am I right?? <br> * Show examples &amp; details if I am wrong!! *
baherus [9]

Yes, you are correct.

From the image, we can see 3 triangles, the large triangle and the two triangles that make the larger triangle.

All 3 of these triangles are similar since they're angle measurements are the same (can be proven by geometry).

We can gather the following information from the given information.

  • The largest triangle (the one made up of two triangles) has a hypotenuse of 3+9=12, and a leg length of x. The hypotenuse to leg ratio is 12/x
  • The second largest triangle has a hypotenuse length x and leg length 9. The hypotenuse to leg ratio is x/9

We know the hypotenuse to corresponding leg ratio must be equal since these two triangles are similar. Thus, we have the equation:

12/x = x/9

Using the cross product property gives us:

x² = 9 × 12

x² = 108

Taking the square root of both sides gives us:

x = √108

= 6 √3

Thus, your answer is correct. Great job!

Let me know if you need any clarifications, thanks!

8 0
3 years ago
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