Answer:
Step-by-step explanation:
total price was reduced by $ 7
let x = the total price........ x - 7
he bought 10.....and it cost him $ 130
10(x - 7) = 130
10x - 70 = 130
10x = 130 + 70
10x = 200
x = 200/10
x = 20 <====== original price
The original price was 8.50 dollars<span />
The | | means absolute value
So, any negative or positive number in absolute value will ALWAYS come out positive.
|-4| = 4
But that's only half the question.
- |-4| = - (4) = -4
Y > -x - 3
y = -x - 3
for x = 0 → y = -0 - 3 = -3 → (0, -3)for x = -3 → y = -(-3) - 3 = 3 - 3 = 0 → (-3, 0)
y ≤ 4x + 2
y = 4x + 2
for x = 0 → y = 4 · 0 + 2 = 2 → (0, 2)for x = -1 → y = 4 · (-1) + 2 = -4 + 2 = -2 → (-1, -2)
Answer is in attachment.
Answer:
22 and 23
Step-by-step explanation:
Step 1: Solve the square root


We can move the 10² out because it matches the index of the root

Step 2: Input into calculator to find decimals

Therefore the square root of 500 lies between 22 and 23