Answer:
Remember, the formula is the second value minus the first value, divided by the first value times 100.
9. 50% Increase
10. 33% Decrease
11. 200% Increase
To calculate tip, simply move the decimal place 2 to the right and multiply it by the price. For example, If you want to leave a 20% tip, multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total including tip.
12. $23.00
13. $10.50
Answer:
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Step-by-step explanation:
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Answer: y= -2; x = 8
Step-by-step explanation:
X=-4y.......equation 1
3x+2y=20......equation 2
Substitute the value of x into equation 2
3 (-4y) + 2y = 20
-12y + 2y = 20
-10y = 20
Divide both sides by -10
y = 20/-10
y = -2
Substitute the value of y into equation 1 to get the value of x
x = - 4(-2)
x = 8
I hope this helps greatly, please mark as brainliest answer.
Answer:
a² + b² + a - b
Step-by-step explanation:
brackets mean multiplying everything by each individual
a² + ba + a - ba - b² - b
simplify buy collecting like terms:
highest values first and +ba mad -ba cancel out
a² + b² + a - b
Divide f(x) by x + 15
this comes to 2x^2 - 6 which represents the length
