Answer:
Step-by-step explanation:
Given : 
Solution:
Thus ,
Thus the solution is irrational since square root 7 does not have a perfect square and equal to 6+2square root of 14
Simplify each term<span>.
</span><span>4r−2−3r−1=8
</span>Add <span>4r</span><span> and </span><span>−3r</span><span> to get </span><span>r.
</span><span>r−2−1=8
</span>Add <span>−2</span><span> and </span><span>−1</span><span> to get </span><span><span>−3</span>.
</span>r−3=<span>8
</span>
Since <span>−3</span><span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by adding </span>3<span> to both sides.
</span><span>r=3+8
</span>Add 3<span> and </span>8<span> to get </span><span>11.
</span><span>r=11
r is equal to 11</span>
(total $)105/14(# of days)=7.5(average cost per day)
Answer:
142m
Step-by-step explanation:
This problem can be solved by simply using the pythagorean theorem, as you stated at the beginning of the problem, which is: 
You are given the <em>a</em> side and <em>b</em> side that are needed for this equation, so it's all a matter of plugging in the information you have:
Now, because the <em>c</em> is still squared, you must take the square root of 20200 in order to get the length of just side <em>c</em>:
≈142m
Answer:
500 students.
Step-by-step explanation:
300 votes is 60%.
100%-60% is 40%
so 40% voted for the other person.
Work backwards:
x * 0.6=300
0.6x=300
x=300/0.6 which is 500.
500*0.4 is 200.
300+200 is 500.
Hope this helps :) I am terribly sorry if it is wrong or not using the number line.
