Answer:
- 3(h + 3)
Step-by-step explanation:
- 3h - 9 ← factor out - 3 from each term
= - 3(h + 3)
Let x be the number of hours she jogs, and y be the number of hours she bikes.
The total time would then be x + y = 5
The total distance (based on the given speeds) would be 6x + 12y = 50
Multiply the first equation by 6 to get 6x + 6y = 30
Subtract this from the second equation to get 6y = 20
y = 10/3 or 3 1/3
Substitute this value back into the first equation to get x = 5/3 or 1 2/3
Therefore, Yolanda will have to jog 1 2/3 hours and bike 3 1/3 hours.
Let the number be x.
Triple the number means 3x
add 6 means 3x + 6
subtract the number twice 3x + 6 - x - x
the result is the number plus 3 means that the result is x + 3
So, combining these into an equation, we get:
3x + 6 - x - x = x + 3
If we solve this equation for x, we will get:
x + 6 = x + 3
The x will cancel out and we will get : 6 = 3
Therefore, this is a false statement.
Answer:
<h2>33k - 25</h2>
Step-by-step explanation:
-5(1 - 5k) - 4(2k + 5) <em>use distributive property a(b + c) = ab + ac</em>
= (-5)(1) + (-5)(-5k) + (-4)(2k) + (-4)(5)
= -5 + 25k - 8k - 20 <em>combine like terms</em>
= (25k - 8k) + (-5 - 20)
= 33k - 25
