Answer:
23,600.
Step-by-step explanation:
23|6
(Kevin) y= k-6 - k minus six
(Melanie) y= 2(k-6) - two times k minus six
K, only got that far... sorry
Answer:
D) 8x²-172x+120
Step-by-step explanation:
Length=2(-2x+20)+6
Width=-2x+20
(-4x+40+6)(-2x+20)
(-4x+46)(-2x+20)
8x²-80x-92x+920
8x²-172x+920
Answer:
Rita must work 50 days to save at least $25.
Step-by-step explanation:
The amount Rita earns per hour = $10
The saving percentage = 5%
So, the savings of Rita per hour = 5% of $10
⇒5% of $10 = ![\frac{5}{100} \times 10 = 0.5](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B100%7D%20%20%5Ctimes%2010%20%20%3D%200.5)
or Rita saves $0.5 per hour.
The amount she wants to save at minimum = $25
So, let she works at the minimum of k Days.
⇒![\textrm{The number of hours she has to work} = \frac{\textrm{Amount she needs saving}}{\textrm{Amount saved in 1 hour}}](https://tex.z-dn.net/?f=%5Ctextrm%7BThe%20number%20of%20hours%20she%20has%20to%20work%7D%20%20%3D%20%5Cfrac%7B%5Ctextrm%7BAmount%20she%20needs%20saving%7D%7D%7B%5Ctextrm%7BAmount%20saved%20in%201%20hour%7D%7D)
or, ![k = \frac{25}{0.5} = 50](https://tex.z-dn.net/?f=k%20%3D%20%5Cfrac%7B25%7D%7B0.5%7D%20%20%3D%2050)
The number of hours she has to work = 50 days
Hence, Rita must work 50 days to save at least $25.
In each case divide the price by the number of cans.
The best buy is the lowest price.
$12.53/7 = $1.79
$5.97/3 = $1.99
$7.95/5 = $1.59
$8.34/6 = $1.39
The fourth ad, $8.34 for 6 cans results in the lowest price per can, $1.39.
The fourth ad is the best buy.