Answer:
45
Step-by-step explanation:
19+26 fences equal 45
Answer: Each shirt costs $1.25, and each hat costs $2.5.
Step-by-step explanation:
Let x= Cost per T-shirt, y = Cost per Hat.
As per given,
3x+3y=11.25 (i)
4x+2y=10 (ii)
Multiply 4 to equation (i)
12x+12y=45 (iii)
12x+6y= 30 (iv)
Eliminate (iv) from (iii), we get
6y= 15
⇒ y = 2.5
Put value of y in (i)
3x+3(2.5)=11.25
⇒3x+7.5=11.25
⇒3x= 3.75
⇒x= 1.25
Hence, each shirt costs $1.25, and each hat costs $2.5.
Those lines on the sides of x in the equation mean "absolute value". Which is a complicated way of saying "this number will never be negative". So if x = 2 then absolute value x= 2 but if x = -2 then absolute value x still is positive 2. Because of those brackets/lines (whatever they're called). So if you're given x=2 then it's simply saying y=4(2)-1 which is y=7
Answer:
See below ~
Step-by-step explanation:
The given polynomial : <u>-2x + 1 + 2x²</u> needs to be written in the form :
- ax² + bx+c
- a is the coefficient of x²
- b is the coefficient of x
- c is the constant term
On rewriting in this asked format,
- 2x² - 2x + 1
- a = 2
- b = -2
- c = 1