Answer:
The total cost of boring the 750 meters is $37,700.
Step-by-step explanation:
We know that the cost of the first meter is $250.
You want to keep on adding $50 each time you add a meter for example the cost of the second meter would be $300 because you add $250+50. Another way is that you can multiply so for the third meter it would be $350 as you $250+50(2).
In that way you can see a pattern forming and we want to subtract 1 variable when multiplying as you are already originally adding $50.
So now we want to form an equation to solve for the cost of 750 meters. The equation I would make is
250+50(750-1)
then you can solve to get 37700 that is shown below
250+50(750-1)
250+50(749)
250+37450
37700
That will be our answer!
The total cost of boring the 750 meters is $37,700.
Answer:
- 2a - 6
Step-by-step explanation:
9 - 4(- a + 9) + 3(7 - 2a) ← distribute parenthesis
= 9 + 4a - 36 + 21 - 6a ← collect like terms
= - 2a - 6
Answer:
A, -475ft
Step-by-step explanation:
7+(x+5) would be the answer because sum means addition and it says x and 5. then it says 7 plus that so you put 7. In reality you wouldn't need parenthesis, but if you want it to match the phrase, you can put it in parenthesis.
Answer:
y = 5x + 3
The line shown has a rate of change of 2, while y = 5x + 3 has a rate of change of 5.