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Rudik [331]
3 years ago
12

What percentage is 28 min of 3 h. Plssss explain too!!

Mathematics
2 answers:
Olegator [25]3 years ago
6 0

Answer:

it's 15.5555555556%

Step-by-step explanation:

28 \: min \: of \: 3h

3h \: in \: min = 3 \times 60

3h = 180min

\frac{28}{180}  =  \frac{x}{100}

(x)180 = 28(100)

(x)180 = 2800

\frac{(x)180}{180}  =  \frac{2800}{180}

x =  \frac{2800}{180}

x = 15.5

masha68 [24]3 years ago
3 0

Answer:

%15.5555556, but rounded...%15.6

Step-by-step explanation:

1. One hour= 60 minutes so....

           ...3 hours will equal 180 minutes!

2. All you have to do is 28 divided by 180 and you get 0.155555556.

3. We will have to multiply by 100 (aka move the decimal to the right twice).

Every time you want to convert a decimal to a percentage, multiple by 100.

4. Then add the percentage symbol.

5. You get %15.56

Hope this helped :))) brainliest plsss

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Find the measure of angle eight in each triangle round each answer to the nearest 10th
vlada-n [284]

Answer:

# m∠A = 65.3°

# m∠A = 25.8°

# m∠A = 22.7°

Step-by-step explanation:

* Lets revise the trigonometry function to solve the problem

- In any right angle triangle:

# The side opposite to the right angle is called the hypotenuse

# The other two sides are called the legs of the right angle

* If the name of the triangle is ABC, where B is the right angle

∴ The hypotenuse is AC

∴ AB and BC are the legs of the right angle

- ∠A and ∠C are two acute angles

- For angle A

# sin(A) = opposite/hypotenuse

∵ The opposite to ∠A is BC

∵ The hypotenuse is AC

∴ sin(A) = BC/AC

# cos(A) = adjacent/hypotenuse

∵ The adjacent to ∠A is AB

∵ The hypotenuse is AC

∴ cos(A) = AB/AC  

# tan(A) = opposite/adjacent

∵ The opposite to ∠A is BC

∵ The adjacent to ∠A is AB

∴ tan(A) = BC/AB

* Lets solve the problems

# In Δ ABC

∵ m∠B = 90°

∵ AB = 2.3 ⇒ adjacent to angle A

∵ BC = 5 ⇒ apposite to angle A

- To find m∠A use the tangent function because we have opposite

  and adjacent sides

∴ tan A = BC/AB

∴ tan A = 5/2.3 ⇒ use tan^-1 to find m∠A

∴ m∠A = tan^{-1}\frac{5}{2.3}=65.29756

* m∠A = 65.3°

# In Δ ABD

∵ m∠B = 90°

∵ AB = 5.4 ⇒ adjacent to angle A

∵ DA = 6 ⇒ the hypotenuse

- To find m∠A use the cosine function because we have adjacent

  and hypotenuse sides

∴ cos A = AB/DA

∴ cos A = 5.4/6 ⇒ use cos^-1 to find m∠A

∴ m∠A = cos^{-1}\frac{5.4}{6}=25.84193

* m∠A = 25.8°

# In Δ ABE

∵ m∠B = 90°

∵ EB = 2.4 ⇒ opposite to angle A

∵ EA = 6.8 ⇒ the hypotenuse

- To find m∠A use the sine function because we have opposite

  and hypotenuse sides

∴ sin A = EB/EA

∴ sin A = 2.4/6.8 ⇒ use sin^-1 to find m∠A

∴ m∠A = sin^{-1}\frac{2.4}{6.8}=22.6673

* m∠A = 22.7°

3 0
3 years ago
Counting clockwise from the minute hand, how many degrees are there from the minute hand to the hour hand at 5 o'clock?​
andrew11 [14]

Given that the minute hand is at exactly 12hrs there is a difference of 5 hours in between so you multiply 5over 12 by 360degrees and you get 180degrees

5/12*360=150

4 0
3 years ago
As a salesman, Mr. Davis earns a $150 base salary per week and a 4% commission on his total amount of sales (s) each week. Which
Pavlova-9 [17]
C is the right answer
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REY [17]
Divide 12 into 96 probably
7 0
3 years ago
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Spencer borrowed $50 from his cousin, who charged him 6% simple interest each year. If Spencer pays his cousin back 3 years late
Orlov [11]

Given:

Principal = $50

Rate of simple interest = 6%

Time = 3 years

To find:

The amount after 3 years.

Solution:

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Where, P is principal, r is the rate of interest in percentage and t is the number of years.

Putting P=50,\ r=6,\ t=3 in the above formula, we get

I=\dfrac{50\times 6\times 3}{100}

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Formula for amount is:

A=P+I

Where, P is principal and I is the simple interest.

Putting P=50,\ I=9, we get

A=50+9

A=59

Therefore, the correct option is B.

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