Answer: A. 40%
Step-by-step explanation:
to find the percentage decrease, first you have to subtract $6,300 from $10,500, which equals $4,200. This is the amount decreased from the price of the car. Then, to find the percentage that $4,200 is to $10,500, you have to divide 4,200 by 10,500. This should give you 0.4, the percentage is this number multiplied by 100. This should give you the number 40, which means that the percentage decrease of the price of the car; 40%.
<span>Let the price of mini golf be $x
Let the price of batting cage be $y
Sylvester:
Price for 5 rounds of mini golf = 5x
Price for 4 rounds of batting cage =4y
Total price paid =$60
Therefore the required equation is:
5x+4y=60 ----------(1)
Lin:
Price for 3 rounds of mini golf =3x
Price for 6 rounds of batting cage =6y
Total price paid = $45
Therefore the required equation is:
3x+6y=45 ----------(2)
Let's use elimination method to find the prices.
Multiply the first equation by 3
15x + 12y =180 -------(3)
Multiply the second equation by 5
15x +30y=225 --------(4)
Subtract equation (4) from equation (3) to eliminate x
15x+12y=180
15x+30y=225
-___-___-________
-18y = -45
y=45/18 =2.5
Substituting y in equation (1)
5x+4(2.5)=60
5x+10=60
5x=50
x=50/5 = 10
Price of mini golf =$2.5
Price of batting cage =$10.00</span>
That would be an independent variable.
Answer:
The answer is 5w+12.
Step-by-step explanation:
Combine like terms:
(3w+7)+(2w+5)
5w+12