Answer:
Step-by-step explanation:
width = x
length= x + 5
a) x + 5
b) x * (x+5) = 300
x^2 + 5x = 300
x^2 + 5x - 300 = 0
Δ = 25 + 1200 = 1225
width = (-5 + 35)/2 = 15 cm
lenght = 15 + 5 = 20 cm
a) length = x + 5
b) + 5x - 300 = 0
x = width
x + 5 = length
(x)(x + 5) = 300
+ 5x = 300
+ 5x - 300 = 0
(x+20)(x-15)
x = -20 or x = 15 ( disregard the -20. measurements can't be negative)
width = 15
length = x+ 5 = 15+5 = 20
24
$7
38-3=35
35/5=7
Morgan 12 ras 12× 3 black Total 12×4 or 12 + 3 × 12 = 48 berries
Kendra picked 9 × Morgan's Total
Kendra picked (12 +(3 × 12)) × 9 = 48 × 9 = 432 berries