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3 years ago

The hour hand of a clock moves -30° every hour. How many degrees does it move in 2 1/5 hours?

Mathematics

1 answer:

Andrej [43]3 years ago

5 0

It moves 2.00666666667 every 1 1/5 hours

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4/11=0.?? and please tell me how you got this answer

faltersainse [42]

4/11 is equivalent to the fraction 0.363636.... I got this answer by dividing the 4 in 11 groups, or doing the equation, 4<span>÷11</span>

8 0

3 years ago

Read 2 more answers

Solving Rational equations. LCD method. Show work. Image attached.

Ugo [173]

Answer:

$k=\frac{1}{2}$

Step-by-step explanation:

The given rational equation is

$\frac{5k}{k+2}+\frac{2}{k}=5$

The Least Common Denominator is

$k(k+2)$

Multiply each term by the LCD.

$k(k+2)\times \frac{5k}{k+2}+k(k+2)\times \frac{2}{k}=5k(k+2)$

Simplify;

$k\times \frac{5k}{1}+(k+2)\times \frac{2}{1}=5k(k+2)$

$\Rightarrow k(5k)+2(k+2)=5k(k+2)$

Expand;

$\Rightarrow 5k^2+2k+4=5k^2+10k$

Group similar terms;

$\Rightarrow 5k^2-5k^2+2k-10k=-4$

$\Rightarrow -8k=-4$

Divide by -8.

$k=\frac{1}{2}$

5 0

3 years ago

Find area of triangle whose base is 2 √3 and height is 3 √3

Lera25 [3.4K]

Area of a triangle = base times height
A = 2√3 times 3√3
A = 18
The answer is 18
Hope that helps

7 0

3 years ago

Ty is eight inches shorter than his brother Reece. If Ty is 42 inches tall, how tall is Reece.

sammy [17]

Answer: reece is 50 inches tall

Step-by-step explanation:

42+8=50

4 0

3 years ago

Read 2 more answers

Explanation?<br> please help asap

elena-s [515]

Answer:

70 degrees = a

Step-by-step explanation:

Triangle= 180 degrees.

Therefore, since a and the unmarked angle are congruent since it is an isosceles triangle, we subtract 40 from 180, with a result of 140. With 140, we divide by 2 to find the degrees for both the unmarked angle and angle a, since they are congruent. 140/2 = 70, Angle A will equal to 70 degrees

4 0

2 years ago