Answer: 35% off coupon
Explanation:
17.90-5= 12.90
x/17.90=35/100
Cross multiply: 17.90(35)=100x
Simplify: 626.50=100x
Divide by 100: 6.265
Round: 6.27
Subtract: 17.90-6.27=11.63
You multiply the 4.00 by 0.10 to get the 10% discount amount. Then you subtract that from $4.00. Then you multiply that amount by 1.06 to get the total with the 6% sales tax. To get $3.82 rounded to the nearest cent.
Answer:
Step-by-step explanation:
The two equation given which are in two variables are
1. y = x²-2 x -1 9
2. y + 4 x=5
Writing equation 2 as→y = 5 -4 x
Substituting the value of y in equation 1
⇒ 5 - 4 x = x² - 2 x - 19
⇒x² - 2 x + 4 x -19 -5=0
⇒ x² + 2 x -24=0
⇒x² + 6 x - 4 x - 24=0→→→[Breaking the middle term i.e term containing x]
⇒ x(x+6) -4(x+6)=0
⇒(x-4)(x+6)=0
⇒x-4=0 ∧ x+6=0
⇒x = 4 ∧ x= -6
Put x=4 in equation 2,
y + 4 ×4=5
y + 16=5
y = 5-16
y= -11
As one solution is (-6, 29), The other solution of the system of equation is (4, -11).
Answer:
20%
Step-by-step explanation:
We were given a price at $50 on sale for $40. To get the markdown percentage, take the amount of money you've discounted the merchandise at and divide it by the sales price.
$50 sweaters, you can put them on sale for $40.
The difference between these two prices is $10.
Now, we need to add the amount of which it was marked down
Therefore, the watch has been marked down by 20%.
Answer:
y=-x²+8x+16
Step-by-step explanation:
y= -3(x – 4)(x – 4)
We multiply
y=(-3x+12)(x-4)
Expand the bracket
y= x(-3x+12) -4(-3x+12)
y=-3x²+12x
-4(-3x+12)
+12x+48
y=-3x²+24x+48
Divide by 3
y=-x²+8x+16
