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umka21 [38]
3 years ago
14

This problem is correct??

Mathematics
1 answer:
ale4655 [162]3 years ago
6 0

yes you are correct  evreything is correct

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Which two sentences indicate a first-person point of view? 1 Shelley, our cat, always gets excited when Mrs. Peters visits us. 2
irga5000 [103]
The two sentences are 1 and 5.
3 0
3 years ago
Alfonso runs 10 km at an average speed of x km/h.
puteri [66]

Step-by-step explanation:

Note that t = d/r where t is time, d is distance, and r is rate/speed.

We can come up with two equations with the information given and the equation:

t_1 hr = (10 km)/(x km/hr)

t_2 hr = (12 km)/(x - 1 km/hr)

<em>where t_1 is the time taken to run the 10km the first day and t_2 is the time taken to run the 12km the second day.</em>

We know that 30 minutes is 1/2 of an hour and that t_1 is 30 minutes less than t_2 (as stated in the question). Therefore, we can write:

t_1 = t_2 - 1/2

Substituting the values we derived:

(10 km)/(x km/hr) = (12 km)/(x - 1 km/hr) -1/2

Then we can evaluate by multiplying by 2x(x-1) on both sides:

20(x-1) = 24x - (x)(x-1)

20x - 20 = 24x - x^2 + x

x^2 -5x -20 = 0

And we are done.

I hope this helps! :)

6 0
3 years ago
I need help on 18 and 19 PLS HELP ME ILY I WILL MARRY U I WILL LOVEEE U FOR ETERNITY
Dmitriy789 [7]

Oof, this is surely a tough one.  But, if I'm looking at this correctly, than I think you were in the right mindset when trying to figure both of them out.  Like, for #18, think about the formula; P(B|A) = P(A and B)/P(A).  So, based on the question, you can let not rolling a 1 on the blue cube be A, and rolling a 1 on the red cube be B.  Now, personally, I prefer using the decimals when heading into the equations, but I'll convert the product into a fraction for the instruction's sake.  0.02777777778 + 0.13888888889 = 1/6.  1/6 ≈ 17.7%.  You can do the same for #19, the overall outcome would be 5/6, which would be about 83%.  Now, that's just me really attempting my hand at it, I will say, Math is far from my strong suite.  But, in all honesty, I really am doing my best to help (and no, it's not because of what you offered, lol, more rather I want to help people who struggle with the same problems I do).  Anyways, I hope this helps, and if you need more information, or anything, just let me know!  Wish ya the best of luck!!  ^u^

5 0
3 years ago
Read 2 more answers
-<br> The midpoint of AB = ([?],[ ])<br> M = (x1+x2Yiy2
Mkey [24]

Answer:M(-0,5;0)

Step-by-step explanation:

6 0
2 years ago
John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $12.50. They spend
gladu [14]
The answer is $1.25 a large drink

Because 17.5 - 12.5 = 5 / 4 = $1.25


I hope this helps
8 0
3 years ago
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