Answer:
26:39
Step-by-step explanation:
65=2x+3x
65=5x
x=13
26:39
check:
26+39=65
Initial number of students: 220
Final number of students : 180
Multiply the initial number of students (220) by the percentage change in decimal form (divided by 100) - That expression must be equal to 180.
220 x = 180
Solve for x:
x=180/220
x= 0.818181
multiply by 100
81,81 %
100%-81,81% = 18.18%
Percent change: 18.18%
Answer:
Bowler World: C = 1.1 g + 5
Lucky Spares: C = 1.5 g + 3
The cost is the same for 5 games, The cost is $10.50
Step-by-step explanation:
5+1.1(5) = 5+5.5=10.50
3+1.5(5) = 3+7.5=10.50
Hopefully, this helped :)
Answer:
200%
Step-by-step explanation:
Answer:
B. The rate at which the number of people in the park is changing 4 hours after the gates open is 92 people per hour.
Step-by-step explanation:
Rate at which people enter:
e(x)=0.03x^3 + 2
Rate at which people leave:
L(x)=0.5x + 1
Rate at which the number of people in the park is changing:
(e - L)(x) = 0.03x^3 + 2 - (0.5x + 1) = 0.03x^3 - 0.5x + 1
4 hours after the gates open, the rate is:
(e - L)(4) = 0.03(4)^3 - 0.5(4) + 1 = 0.92 hundreds of people per hour or 0.92*100 = 92 people per hour
