Answer/Step-by-step explanation:
Call Monday's price, P
Tuesday's price must just be .80P [ 20% reduction]
Call Wednesday's price reduction ( 1 - R)
So...we have that
Tuesday's price * Wednesday's reduction = (1/2)P
(.80)P *( 1 - R) = (1/2)P divide through by P and note that 1/2 = .50
.80 (1 - R) = .50 divide both sides by .80
1 - R = .50/.80
1 - R = 5/8
1 - 5/8 = R
3/8 = R = .375 = 37.5% = the reduction from Tues. to Wed.
Proof of this...let Monday's price = 100
Tuesdays price = .80 * 100 = 80
Wed price = 80 (1 - R) = 80 (1 - .375) = 50 = half of Mon. price
Point slope:
y-y1= m(x-x1) <- we will plug all the given information into this formula.
We have the slope, which equals m. m= 5
y-y1= 5(x-x1)
-4= x1 and 0= y1
y-0=5(x-(-4)
Two negatives equal a positive.
y-0=5(x+4)
Combine like terms.
y= 5x + 20
We could talk this one step further and convert it to standard form.
Ax+By= C
y=5x+20
Subtract 5x on both sides.
-5x+y= 20 <- this is standard form.
Here's a simple way to check to see if this is correct. Plug in x and y.
-5(-4)+0= 20
20+0= 20; 20=20
I hope this helps!
~kaikers
Answer:
8/17
Step-by-step explanation:
Answer:
To determine the correct statement in the choices presented, we first have to solve the area of the tray. We assume it to be in a rectangular form so the area is:
Step-by-step explanation:
Area = 10 in x 10 in x 7/2.54 in = 275.59 in³ for the paint tray
1 gallon paint = 231 in³ paint
Therefore, the correct answer is the first option. The paint will not fill the tray by 44.59 in³