$60 -$45= $15
$15/ $60* 100%= 25%
The percent discount is 25%~
Answer:
l = - w
Step-by-step explanation:
P = 2l + 2w
2l = P - 2w
l = - w
The answer is 22 dryhhjkkjjjjihgghhhhjjj
Answer:
The graph in the attached figure
Step-by-step explanation:
Let
x ----> represents the amount that Jennifer has
y ----> represents the amount that Matthew has
we know that
The amount that Jennifer has is greater than or equal to $34 plus three times the samount that Matthew has
The inequality that represent this situation is
we have
substitute
The solution is the interval [40,∞)
In a number line the solution is the shaded area at right of x=40 (closed point)
see the graph attached
Answer:
True
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (- 4, - 9), thus
y = a(x + 4)² - 9
To find a substitute the coordinates of the zero (- 7, 0) into the equation.
0 = a(- 7 + 4)² - 9, that is
0 = 9a - 9 ( add 9 to both sides )
9a = 9 ( divide both sides by 9 )
a = 1, thus
y = (x + 4)² - 9 ← expand factor using FOIL
y = x² + 8x + 16 - 9
y = x² + 8x + 7