Answer:
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The mileage on Ori's car is 73,033 miles. What is the fewest number of miles that Ori needs to drive before the mileage shows th
2 answers:
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Answer:
29 cans
Step-by-step explanation:
To solve this problem we must use Heron's formula; A =
S = 1/2 the perimeter of the given triangle
a, b, c = the measurements of the three given sides
The first step to solving this question is first finding the perimeter.
P = 65m + 74m + 67m
P = 206m
Now that we have our perimeter, we must divide P by 2 to get S.
S = 206/2
S = 103
Now we plug our numbers into Heron's formula.
A =
A =
A =
A =
A =
Find the square root of this number.
A ≈ 2021.43909134... m²
If a can of paint covers 70 square meters, then you will need to figure out how many cans you need. This can be done by dividing the overall area of the triangle by the area that a single can of paint can cover.
= 28.8777013049...
We know we can't buy 28.87... of a can (people simply do not sell parts of cans or half-full containers... unless its a bag of lays chips and their 80% air nonsense...) so we must round up to the nearest whole number.
28.87... = 29
Thus we finally have our answer: 29 cans of paint!
Answer:
The linear equation relating price to demand is Q=-0.5*P + 30
Step-by-step explanation:
The demand for a good is the quantity of that good that the demanders are willing to purchase at a given price.
Then, the Demand Curve relates the quantity that a consumer would be willing to buy as a function of price.
You seek to determine the linear equation that relates the price to the demand Q = m * P + b where Q is the quantity demanded at a price P, and compared with the equation of the straight line y = mx + b, m is the slope and b is the ordinate to the origin.
On a line of the form y = m * x + b, the value of m, having two points, is calculated by:
And the ordinate to the origin b is calculated, taking the value of m, replacing any of the two points (replacing any of the two because it must give the same value of b) in the expression y = m * x + b and solving its value.
In the case of Q=m*P+b, the value of m, having two points, is calculated by:
Being:
- Q1= 5
- P1= $50
- Q2= 10
- P2= $40
and replacing:
you get:
m= -0.5
So, being Q=-0.5*P+b, b is calculated by:
- Replacing the point Q1= 5 and P1= 50
5= -0.5*50 + b → 5= -25 + b → 5+25= b → b= 30
- Replacing the point Q1= 10 and P1= 40
10= -0.5*40 + b → 10= -20 + b → 10+20= b → b= 30
Then, <u><em>the linear equation relating price to demand is Q=-0.5*P + 30</em></u>
Here's the solution,
=》
=》
now, let's multiply the whole equation with 4
=》
=》
=》
=》
so,
Case 1. where, 2x - 5 = 0
=》
case 2. where, 2x - 1 = 0
=》