Answer:
1. x=5
2.x=-33/8
3.x=10
4.x=5
Step-by-step explanation:
Answer:
Step-by-step explanation:
To find this, turn the word question into an equation.
"One less than" means - 1, which is 1 being subtracted from something.
"half a number" means 1/2x, since 1/2 is half and x is unknown.
"is 12" means = 12, which is something equals 12.
Putting this in order would be 1/2x, then - 1, then = 12.
As an equation, this is 1/2x - 1 = 12.
So the equation is 1/2x - 1 = 12
Now you must find the number by solving this equation.
1/2x - 1 = 12
First, add 1 to both sides.
12 + 1 = 13
1/2x = 13
Now multiply both sides by 2.
This way, x will be isolated since 1/2x • 2 = 1x, and 1x = x.
13 • 2 = 26
x = 26
The number is 26.
Answer: 47 meters
Step-by-step explanation:
The equation for the diameter of a circle is 
, so we just multiply the diameter (15) by 
. 
, or roughly 47.1238898038. Rounded to the nearest meter, 47 meters. Also, happy pi day!
ANSWER: 12/20 or 3/5
4/5 of girls have brown hair
3/4 have long hair
