Answer: 2.2 meters
Step-by-step explanation:
The data is:
The initial piece is 6.35 meters long.
We cut 25 pieces of 16.2cm each, so in pieces only we have:
25*16.2cm = 405cm
1m = 100cm
Then: 405cm = (405/100) m = 4.05m
And each time that we cut a piece, we have 4mm of waste.
Then we have 25 times the 4mm of waste, this means that the total waste is:
4mm*25 = 100mm
and 1000mm = 1m
100mm = (100/1000) m = 0.1m
So the total amount that was cut is:
4.05m + 0.1m = 4.15m
The length in the channel iron will be: 6.35m - 4.15m = 2.2 meters
Answer:
-1 ≤ x
Step-by-step explanation:
You just need to divide -3 on both sides.
-1 ≤ x
<em>Note that since you are dividing by a negative number, the sign flips.</em>
Answer:
58.75 seconds per mile
Step-by-step explanation:
Alaina ran the distance 131.25 -119.5 = 11.75 minutes faster the second week. That's 705 seconds faster, or faster by ...
... (705 s)/(12 mi) = 58.75 s/mi
Answer:
<h2>c = 220</h2>
Step-by-step explanation:
f(x) = cx + d
<u>For the first equation</u>
f(50) = 27,000
Substitute the value of x that's 50 into the expression
That's
50c + d = 27,000
<u>For the second equation</u>
f(100) = 38,000
Substitute the value of x that's 100 into the expression
We have
100c + d = 38,000
Subtract the first equation from the second one to eliminate d
That's
100c - 50c + d - d = 38,000 - 27,000
50c = 11,000
Divide both sides by 50
We have the final answer as
<h3>c = 220</h3>
Hope this helps you