-3.8 is -3 8/10 which is -3 4/5 simplified
Answer: If solving for P it is p = -3/5
If you are just wanting the equation it is 5p+3
Step-by-step explanation: Plug in c and d into 5p+cd
You get 5p+(1/5)(15)
Once done with the math it is 5p+3
Answer:
x=2 or x=-2
Step-by-step explanation:
I'm not sure what you're asking, but when you solve, set both sets of parentheses equal to 0 and solve. This makes x either equal to 2 or -2.
Answer: $108199
Step-by-step explanation:
Step 1) Find the deposit cost
35/100 × 89540 = 31339
Step 2) Find the total cost of the monthly payments
2135 × 36 = 76860
Step 3) Find the final cost
31339 + 76860 = $108199
Answer:
i)W = 2500 / T
ii) W = 500 Tons
iii) grad W(10°) = - 25î
iv) The formulation is not practical
Step-by-step explanation:
i) Write an equation describing the use of coal
As use of coal is inversely proportional to the average monthly temperature
if W is use of coal in tons/per month then
W(t) = k / T where k is a constant of proportionality and T is the average temperature in degrees. We have to determine k from given conditions
k = ?? we know that when T = 25° W = 100 tons the by subtitution
W = k/T 100 = k /25 k = 2500 Tons*degree
Then final equation is:
W = 2500 / T
ii) Find the amount of coal when T = 5 degrees
W = 2500 / 5
W = 500 Tons
iii)
The inverse proportionality implies that W will decrease as T increase.
The vector gradient of W function is:
grad W = DW(t)/dt î
grad W = - 2500/T² î
Wich agrees with the fact that W is decreasing.
And when T = 100°
grad W(10°) = - 2500/ 100 î ⇒ grad W(10°) = - 25î
iv) When T = 0 The quantity of coal tends to infinite and the previous formulation is not practical
