Answer:
v = s/t
v = (381.59 miles) / (5.5 hours)
v = 69.38 mph
To solve this, since you know that h(x) is 11 and that it also equals -4x+3, you set them equal to one another which would look like this: 11=-4x+3.
Then, to solve for x, which is what I am assuming the question is asking, you would subtract 3 from both sides to isolate -4x, which would result in this:
-4x=8
Now, to solve for x, divide both sides by -4, and you get your answer which is x=-2
They met 480 meters from the house.
<h3><u>Calculus</u></h3>
Given that Noah and his grandfather were returning home from a walk, and when they were 800 m away from the house, the grandfather said that he was thirsty, so Noah immediately ran home, got a bottle of water, and ran back to meet his grandfather who never stopped walking at a steady pace, to determine how many meters from the house did they meet if noah ran four times as fast as his grandfather walked, the following calculation must be made:
- 200 x 4 = 800 - 200 = 600
- 300 x 4 = 1200 - 800 - (800 - 300) = 100
- 325 x 4 = 1300 - 800 - (800 - 325) = -25
- 320 x 4 = 1280 - 800 - (800 - 320) = 480 - 480 = 0
Therefore, they met 480 meters from the house.
Learn more about calculus in brainly.com/question/26453068
If you would like
to write the following in the math expression, you can do this using these
steps:<span>
<span>a number ... </span>n
eight less than four times a number ... 4 * n - 8</span>
<span>
is less than 56 ... < 56
4 * n - 8 < 56
4 * n < 56 + 8</span>
<span>4 * n < 64 /4</span>
<span>n < 64 / 4</span>
<span>n < 16</span>
The possible values of that number are less than 16.
1/10 is equal to 0.10. Multiply their total tables (200) by the percent (10% aka 0.10), and you get 20. Hope this helps.
