Answer:
$279.25
Step-by-step explanation:
Multiply 6.50x43
Multiply 0.5x6.50
Add 43-40
Multiply 3.250x3
Solution
= 2x^3 +8x^2 +16x - x^2 -4x -8
= 2x^3 +7x^2 +12x -8
Answer:
y = -0.8x - 5
Step-by-step explanation:
x1 = (XA + XB) / 2 = -5
y1 = (YA + YB) / 2 = -1
m = (XA - XB) / (YA - YB) = -0
__________________________________________
(y - -1) = -0.8(x - -5)
y - -1 = -0.8x - 4
y = -0.8x - 4 + -1
y = -0.8x - 5
Answer:
A single cheeseburger order cost $1.23
A single fries order cost $1.28
Step-by-step explanation:
Let the cost of cheeseburgers be c and the cost of fries be f
Mathematically;
4c + 3f = 10.75 ••••(i)
Secondly;
5c + 2f = 11.2 ••••(ii)
We have two equations to solve simultaneously;
Multiply i by 2 and ii by 3
8c + 6f = 21.5
15c + 6f = 33.6
Subtract ii from i
-7c = -12.1
c = 1.73
Recall;
5c + 2f = 11.2
5(1.73) + 2f = 11.2
2f = 11.2-8.65
2f = 2.55
f = 2.55/2
f = 1.28
Answer:
t = 5 seconds
Step-by-step explanation:
We have,
Speed of the truck, v = 4 m/s
It is required to find the time taken by a truck to travel 20 meters. It can be assumed that the time is t. Using the formula of speed.
After rearranging, we get :
So, the time taken by a truck to travel 20 meters is 5 seconds.