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3 years ago

Please help me with this.

Mathematics

1 answer:

kompoz [17]3 years ago

3 0

Answer:

$75\sqrt{2}(\sqrt{3}-1)$

Step-by-step explanation:

In every right triangle, a leg is given by the multiplication of the sine of its opposite angle and the hypothenuse.

In this case, the opposite angle of x is 15°, and the hypothenuse is 300. So, we have

$x = 300\sin(15) = 75\sqrt{2}(\sqrt{3}-1)$

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Usan has a collection of 105 nickels and dimes. If the number of nickels is six times the number of dimes, how many nickels and

skad [1K]

Answer:

90 nickels and 15 dimes

Step-by-step explanation:

If one is six times the other, then you would have 7 equal piles. Divide 105 by 7 to get 15 which is the number in each pile(number of dimes). Then 105 minus 15 gives you the total of the rest of the piles(number of nickels).

Check:

90 plus 15 equals 105, and

15 times 6 equals 90.

3 0

4 years ago

Find the equation of this line.

9966 [12]

y=3/4x+1/4

I hope this helped :)

3 0

2 years ago

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Jody sprints 400 meters per minute. How fast does she run in meters per second? Round to the nearest hundredth. *

Dmitry [639]

Answer:

399

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Clare knows that Priya has a bunch of nickels and dimes in her pocket and that the total amount is $1.25. Write an equation that

Mrrafil [7]

Answer:

The equation that describes the relationship between the number of dimes and the number of nickels in Priya's pocket. is;

$0.05n+0.10d=1.25$

Explanation:

Let n and d represent the number of nickels and dimes in her pocket;

We know that;

1 nickel is 5 cents = 0.05 dollar

1 dime is 10 cents = 0.10 dollar

Also;

n nickels = n times 0.05 dollars

$0.05n$

d dimes = d times 0.10 dollar

$0.10d$

The total is given as;

the total amount is $1.25.

So, we have the equation as;

$0.05n+0.10d=1.25$

Therefore, the equation that describes the relationship between the number of dimes and the number of nickels in Priya's pocket. is;

$0.05n+0.10d=1.25$

8 0

1 year ago

Leanne runs a lap in 12 minutes. Kory runs a lap in 9 minutes. If they

klemol [59]

Kory and Leanne will meet each other again after 36 minutes from starting i.e. at 10:36 am .

<u>Step-by-step explanation:</u>

Here we have , Leanne runs a lap in 12 minutes. Kory runs a lap in 9 minutes. We need to find out that If they both start running at 10 am, at what time will they both cross the start together again . Let's find out:

Kory runs a lap in 9 minutes and , Leanne in 12 minutes , in order to find at what time will they both cross the start together again we will find LCM of 9 & 12 :

⇒ $\frac{9(4)}{12(4)}$

⇒ $\frac{36}{36}$

So ,LCM of 9 & 12 is 36 .That means Kory and Leanne will meet each other again after 36 minutes from starting i.e. at 10:36 am .

In clear way , Kory will run race as :

1st lap = 9 minutes

2nd lap = 18 minutes

3rd lap = 27 minutes

4th lap = 36 minutes , i.e. at 10:36 am he'll complete his 4th lap

For , Leanne

1st lap = 12 minutes

2nd lap = 24 minutes

3rd lap = 36 minutes i.e. at 10:36 am he'll complete his 3rd lap .

This means Kory & Leanne will meet at 10:36 am completing there 4th and 3rd lap respectively .

6 0

4 years ago