Step-by-step explanation:
x = number of $50 bills
y = number of $100 bills
x + y = 20
50x + 100y + 500 = 100x + 50y
50y + 500 = 50x
y + 10 = x
now we use that in the first equation :
y + 10 + y = 20
2y = 10
y = 5
x = y + 10 = 5 + 10 = 15
so, he has 15 $50 bills and 5 $100 bills = $750 + $500 = $1250 in his wallet
Answer:
The time the object takes to fall on the ground from 224 feet is 3.74 s.
Step-by-step explanation:
In this case we have a known quantity, the distance of the fall that is 224 feet and a equation that represents the motion of this fall that is d = 16t^2. We wish to find the time it'll take this object to fall, so we can solve this equation for t. It goes as follows:
d = 16t^2
d/16 = t^2
t^2 = d/16
t = \sqrt(d/16)
t = [\sqrt(d)]/4 = [\sqrt(224)]/4 = 14.97/4 = 3.74 s
where \sqrt is the square root of the number.
The answer is one chummy boiiiii
Answer:
2
Step-by-step explanation:
To evaluate f(- 2) substitute x = - 2 into f(x)
f(- 2) = 3(- 2)² + 5(- 2) = (3 × 4) - 10 = 12 - 10 = 2
