Answer:
141
Step-by-step explanation:
convert to standard form then use D= B squared -4ac
<span>3 + ((-5) + 6) = (3 + (-5)) + 6
It's </span>associative property of addition
The associative property of addition states that you can add regardless of how the numbers are grouped, result will state the same.
Answer:
c=8p
Step-by-step explanation:
So, we know that 1 pound of chocolate will cost $8. Felipe is going to buy "p" pounds of chocolate, and "p" means "any number"; so Felipe is going to buy any number of pounds of chocolate.
The formula we would use to calculate this is cost of one pound of chocolate multiplied by number of pounds of chocolate. And the way we can form this algebraically is by writing c=8p.
The "c" stands for total cost and we don't have to put the multiply sign when using algebra, as long as the figures are touching.
Answer:
see below
Step-by-step explanation:
10 markers =7 dollars
Divide each side by 10
10/10 = 7 /10
1 marker = 7/10
y =7/10 x where y is the cost and x is the number of markers
24 markers =14 dollars
Divide each side by 24
24/24 = 14 /24
1 marker = 7/12
y = 7/12 x where y is the cost and x is the number of markers
The only thing you can do here is to try to simplify, so I'll assume that's what you want to do.
The numerator is a difference of squares, so it's easy to factorize:
In the denominator, we factorize by grouping:
So we have
