C = number of parents
c+9 = number of children
2c+9=25
2c=16
c=8
8 parents, 17 children
Answer:
3
Step-by-step explanation:
A) The amount of coffee remaining is the amount of coffee held at the beginning minus the coffee ground each turns times the number of times the crank is turned.
This relationship can be written as:
c = 200 - 2t
B) Since the amount of coffee changes according to how many times the crank is turned (and not vice-versa), we can say that:
t = independent variable
c = dependent variable
The height of the fire department is 244.72 m
Step-by-step explanation:
A)
Angle of elevation = 73°
The distance between the two buildings = 46 m
tan 73° = b/46
tan 73° = 3.27
tan 73° = b/46
3.27 = b/46
b = 3.27 x 46
b = 150.42 m
B)
Angel of depression= 64°
The distance between the two buildings = 46 m
tan 64° = a/46
tan 64° = 2.05
tan 64° a/46
2.05 = a/46
a = 2.05 x 46
a = 94.3 m
The total height of the fire department building = a + b
= 94.3 + 150.42
= 244.72 m
The height of the fire department is 244.72 m
Answer:
x - 135
Step-by-step explanation:
Bailey withdrew $135 from her checking account
Withdrew means to subtract
Let's call the amount of money in her checking account x
Algebraic expression to represent situation:
x - 135
Hope this helps :)
