Answer:
six hundred = 600
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Step-by-step explanation:
Below average rainfall in a region for several months
Not enough rain to be absorbed into the ground before evaporating
Cutting down trees and overuse of land
Hot dry air masses blown into a region by westerly winds
Human activities that deplete the water table faster than it can be replaced
A car is worth $300
Step-by-step explanation:
A board game allows players to trade and sell game pieces of equal value
- Player 1 traded three cars plus $100 for a house
- Player 2 sold two houses and a car for $2300
We need to find how much the car is worth
Assume that the car is worth $x and the house is worth $y
∵ Player 1 traded three cars plus $100 for a house
∴ 3 x + 100 = y
- Subtract 100 from both sides
∴ 3 x = y - 100
- Subtract y from both sides
∴ 3 x - y = - 100 ⇒ (1)
∵ Player 2 sold two houses and a car for $2300
∴ x + 2 y = 2300 ⇒ (2)
Now we have system of equation to solve it
Multiply equation (1) by 2 to eliminate y
∵ 6 x - 2 y = - 200 ⇒ (3)
- Add equations (2) and (3)
∴ 7 x = 2100
- Divide both sides by 7
∴ x = 300
A car is worth $300
Learn more:
You can learn more about the system of equations in brainly.com/question/6075514
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Answer:
<u>Use the following identity:</u>
- a³ + b³ + c³ = 3abc if a + b + c = 0
<u>Substitute:</u>
<u>and get:</u>
- (3x)³ + (5y)³ + (4z)³ = 3(3x)(5y)(4z)
- 27x³ + 125y³ + 64z³ = 180xyz
Answer:
4 1/2 hours
Step-by-step explanation:
Total time worked was ...
2 3/4 + 1 3/4 = (2 +1) + (3/4 +3/4)
= 3 + (1 1/2) = 4 1/2 . . . hours