Answer:
29.4
Step-by-step explanation:
if 5 painters takes 21 hours that makes it 4.5 per person so multiply that by 7 and there you go!
Based on the calculations, the unit rate in feet per minute for this walking pace is equal to 250 feet per minute.
<h3>How to calculate the unit rate?</h3>
A unit rate refers to a measurement of a quantity which is calculated as a ratio of one parameter to another.
This ultimately implies that, we would divide the distance covered in feet by the time taken to cover this distance as follows:
Unit rate = distance/time
Unit rate = 3750/15
Unit rate = 250 feet per minute.
Read more on time here: brainly.com/question/12199398
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345= 3 hundreds, 4 tens, and 5 ones
391= 3 hundreds, 9 tens, and 1 one
You can use the model I attached to help u see it better.
Hope this helps!
1. X+2=3x-4
6=2x
x= 3
2. y= 8-x
8-x = 3x+4
4= 4x
X= 1
3. -2x +3(2x+7)=9
-2x + 6x + 21 = 9
4x = -12
x= -3
