1/2 (-4x + 12)= 26
-4x + 12= 52
-4x = 52 - 12
-4x = 40
x= 40/-4
x= -10
The answer is B. x = -10
If we plug in d = 0 (to indicate no desserts are ordered), then we'll get
t = 1.4*d + 9.1
t = 1.4*0 + 9.1
t = 9.1
indicating that, on average, the server expects to get $9.10 in tips if no desserts are ordered
This is why the answer is choice D)
Answer:
21
Step-by-step explanation:
70/10=7
So 7 people are 10% of the train.
10*3=30
7*3=21
21 empty seats
If you divide the circumference C over the radius r, you get 2pi
2pi = C/r
this is because
C = 2pi*r
is one formula to find the circumference. Another formula is
C = pi*d
which works because d = 2r, ie the diameter is twice the radius.
1) 38cm
2) 2304cm^2
3) 64cm^2
To find the area you multiply the sides
To find the perimeter you add the sides
