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Archy [21]
2 years ago
5

1. In a classroom of the students are wearing blue shirts, and

Mathematics
1 answer:
dexar [7]2 years ago
5 0

Answer:

x

Step-by-step explanation:

It does not say the number of how many people are suing blue or white.

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Antonio finished the race in 28 minutes and 11.00 seconds. Julio finished 0.08 second faster than Antonio. Pete finished 0.1 sec
max2010maxim [7]

Answer:

It took Peter 28 minutes and 10.82 seconds to finish the race.

Step-by-step explanation:

We have that:

t_{A}: Antonio = 28 min + 11.00 s (1)

t_{J}: Julio = A - 0.08 s  (2)

t_{P}: Pete = J - 0.1 s   (3)

Then, the time at which Pete finished the race is:

t_{P} = t_{J} - 0.1   (4)

By entering equations (1), (2), (3) into (4) we have:

t_{P} = (t_{A} - 0.08) - 0.1            

t_{P} = 28 min + 11.00 s - 0.18 s = 28 min + 10.82 s

Therefore, it took Peter 28 minutes and 10.82 seconds to finish the race.    

I hope it helps you!

5 0
3 years ago
Find B round to the nearest tenth!!!! laws of cosines!!!!​
AlexFokin [52]

Answer:

32.7°

Step-by-step explanation:

Use the formula for law of cosines, for this question we need so solve for angle B, so use...

b² = a² + c² - 2(a)(c)Cos B

We are given a, b, and c, so plug them in...

55² = 90² + 50² - 2(90)(50)Cos B

Now simplify...

3,025 = 8100 + 2500 - (9000)Cos B

   -7,575 = -(9000)Cos B   (subtract 8100 and 2500 from both sides)    

            0.841666667 = Cos B    (divide both sides by -9000)

       Cos^(-1) 0.841666667 = B  (use cosine inverse function on calculator)

3 0
3 years ago
Ms. Curtis studies 25 hours for 2 tests, and studies 100 hours for how many tests?
enot [183]

Answer:

8

Step-by-step explanation:

Set up a ratio problem:

25 hours/2 tests = 100 hours/x

25x = 200

x = 8

4 0
3 years ago
Read 2 more answers
HELP PLS<br> idk how to do this<br> It's called Project: Let's get cooking!
Anastaziya [24]

Answer: What exactly do you need help with

4 0
3 years ago
IHELP if 1 out of 5 animals are cats then how many cats are there in an ecosystem of 200 animals???​
mote1985 [20]
There are 40 cats in the ecosystem.

You set 1/5 equal to x/200. Then you cross multiply the fractions to get 5x=200. You divide both terms by 5 to get x, which equals 40.

3 0
3 years ago
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