Answer:
r=12
Step-by-step explanation:
Look, we can reverse the problem to get 23-11=r. This means that r=12.
<span>The
problem said that for each part, there is 1/10 mile long. If Marsha finished 5
parts of the race, just multiply 5 by 1/10 and you will get 5/10 or ½ or 0.5
miles. Therefore, Marsha finished 0.5 miles of the race.</span>
7/8-5/8= 2/8 and if you reduce 2/8 by 2 it becomes 1/4. So 1/4 is your answer. Hope This Helps :D
Answer:

Step-by-step explanation:
<u>Step 1: Combine on the right side
</u>


<u>Step 2: Divide both sides by 90
</u>



Answer: 
The perpendicular slope is expressed as the negative reciprocal of the slope or − 1 m. In this scenario, the slope, or m, is −4 so the slope of the perpendicular line is − 1 −4 which simplifies to 1 4