General rule: The angles on a straight line total 180°
The right angle equates to 90°
Since that angle is half of our desired angle, it must mean that 2x + x = 90°
breaking this down, we get 3x = 90° which can be divided to make x = 30°
Answer:
Each board is (4/25) meters long = 0.16 meters long
Step-by-step explanation:
The board is 4/5 meters long, and he needs to cut 5 equal pieces, so we need to divide 4/5 of a meter in 5 parts.
This mathematically becomes: 4/5 divided by 5 which by the definition of division of rational numbers, is the same as :
4/5 times the reciprocal of 5 = (4/5) * (1/5) = (4/25) = 0.16 meters each board
Well this is a hard question to answer, but this is how i would put it.
You would take a number (lets use 15) and the second number (lets use 5) would determine how many times it would go into 15. In other words, 5 time x would equal 15 (5x=15). 5, being a factor of 15, would evenly fit into 15 three times.
Answer:
c = -12
Step-by-step explanation:
Solving for a variable with fractions can sometimes seem difficult, but getting rid of the fractions first will help. In order to get rid of a fraction, you can multiply by its reciprocal on both sides of the equation. The reciprocal is the opposite form of the fraction where the numerator becomes the denominator and the denominator becomes the numerator. For example:
So, the recriprocal of is
Start by multiplying both sides of the equation by :
()()(c+8) = ()
c + 8 = or c + 8 = -4 so c = -12