Answer:
x≤7.8 ⇒(-∞;7.8]
x<7.8 ⇒ (-∞;7.8)
x>7.8 ⇒ (7.8; ∞)
x≥7.8 ⇒ [7.8; ∞)
Step-by-step explanation:
Hi, to answer this question we have to analyze each expression:
• x≤7.8
The solution is all the numbers less or equal to 7.8, since it can be equal to 7.8, it includes 7.8 , we have to use closed brackets
(-∞;7.8]
• x<7.8
All the numbers less than 7.8 , it excludes the endpoint , it's an open interval (parenthesis)
(-∞;7.8)
• x>7.8
All the numbers higher than 7.8, open interval (parenthesis)
(7.8; ∞)
• x≥7.8
All the numbers higher or equal to 7.8, closed interval (closed brackets for the endpoint)
[7.8; ∞)
Answer:
The fee increased 12.5%
Step-by-step explanation:
The new price is 9 and the old price is 8, so you can find the change by doing
9/8
which is 1.125
This means the new price is 12.5% higher than last year because you have to ignore the 1 in front and only look at the .125
Move the decimal place two to the right to get 12.5 and then add the % sign.
hey, you need to simplify the fraction into a decimal or the decimal into a fraction.
Answer:
{ 3x - y = 6
{ x + 2y = 16
Step-by-step explanation:
1- Simplify
*The Graph is in the attachment, hope this helps :)
Hey quick tip, plug the equation into desmos graphing calculator if you need to visualize it!
