1. If x -3 is less than or equal to 12 ,then you will transpose 3 to the right and subtract 3 from 12
Your question asks for an expression, so you would expect an answer in the form of an equation containing variables. This is because you have only 2 independent equations with 3 unknowns. That makes the system unsolvable.
Suppose v₁ is the mountaineer's velocity during the 1,000-foot trail. Then, v₂ is his speed for the 5,000-foot trail. The equation relating these two variables is:
v₂ = 2v₁ - 10 ---> equation 1
Then, you find the equation for the total number of hours he climbed. That would be the distance divided by their respective speed.
t = 1000/v₁ + 5000/v₂ ----> equation 2
Substituting equation 1 to equation 2,
t = 1000/v₁ + 5000/(2v₁ - 10)
t = 1000/v₁ + 5000/2(v₁-5)
t = 1,000/v₁ + 2,500/(v₁-5)
Answer:
Step-by-step explanation:
<em>Note: 3x + 8 is incorrect as leads to negative value for the length. Therefore changed to 3x - 8</em>
<em>------------------------------------------------</em>
- DE is midsegment
- Midsegment = 1/2 Base as per definition, DE = 1/2AC
<u>Substitute values</u>
- 3x - 8 = 1/2(4x + 10)
- 3x - 8 = 2x + 5
- 3x - 2x = 5 + 8
- x = 13
DE = 3*13 - 8 = 31
Answer:
On average, a tapped tree will produce 10 to 20 gallons of sap per tap.
Answer:
25.12cm
Step-by-step explanation:
So we first find the area of the circle on top:
area= ![\pi](https://tex.z-dn.net/?f=%5Cpi)
or 3.14 x ![2^{2}](https://tex.z-dn.net/?f=2%5E%7B2%7D)
which equals 12.56
Then we multiply it by 2:
12.57 x 2 = 25.12
So the lateral surface area is 25.12cm