0.21
0.4
0.37
0.5
We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion:
(9x+6)/18= (20x+4)/3x
First, distribute your like terms, which in this case is 'x'
you should get (9x+6)/18= 60x + 12
then you have to multiply both sides by 18 to get rid of the fraction
you should then get 9x+6= 1080x + 206
next, subtract 9x from 1080x, you should get 1071x
then subtract 206 on the side the 6 is on and you should get -200=1080x
divide both sides by 1080 and you should get x=0.19
For future preferences use PEMDAS = Parentheses, exponents, multiplication, division, addition, and subtraction. (Yeah, I know I didn't do it in that order)
How much do 777 light bulbs cost?
Question:
At the market, 5 light bulbs cost $9. How much do 7 light bulbs cost?
Answer:
Cost of 7 bulbs is $ 12.6
Solution:
Given that,
5 light bulbs cost $ 9
Find the cost of 1 bulb
Cost of 1 bulb is found by dividing the cost of 5 bulbs by 5
Thus cost of 1 bulb is $ 1.8
Thus cost of 7 bulbs is $ 12.6
Answer:
7 bulbs equals 12.6
Step-by-step explanation: