Answer:
12 = -3 - 3x
Step-by-step explanation:
Same concept as the last question I answered. First, let's derive a formula from the given model. So we have 3 negative x and 3 negative 1 which equal to 12 positive ones, this can be written as:
-3x - 3 = 12
which can be rewritten as
12 = -3 - 3x
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.
Simplify to 2.1s + 2.8 - 1.1s = 7.9. Simplify again to s = 5.1. If this is right could you possibly give me brainliest? Hope this helped.
Answer:
Tappan is $1400
Hill is $1420
Step-by-step explanation:
Particulars Tappan Hill
Tons purchased 4500 7500
Tons discarded 135 375
% plastic discarded 3% 5%
% plastic accepted for 97% 95%
Quoted price 1358 1349
% accepted for 97% 95%
Effective cost per ton
= Quoted price / % accepted for
$ 1400 $1420
Effective cost per ton
Tappan Hill
$1400 $1420