<span> It would seem that solving an equation algebraically and getting a false or true statements means that the system has no solution.</span>
In order to find the average you have to add up all the data values and then find the sum of the data values.
So on average he ran about 82.5 miles.
Answer:
12. 56
Step-by-step explanation:
The area of a circle is given by pi×r^2
where r is the radius. The question states That we should use 3. 14 in place of pi.
Area=3. 14×r^2
=3. 14×2^2
=3. 13×4
=12. 56
Answer:
Karl works 7 hours a week
Step-by-step explanation:
Step 1: Determine total amount that Sally earns
Total amount Sally earns=rate per hour×number of hours worked(h)
where;
Rate per hour=$7 per hour
Number of hours worked=h
Replacing;
Total amount Sally earns=(7×h)=7 h
Step 2: Determine total amount Karl earns
Total amount Karl earns=rate per hour×number of hours worked
where;
rate per hour=$5
number of hours worked=2 more than Sally=h+2
replacing;
Total amount Karl earns=5(h+2)
Step 3: Equate Sally's total earnings to Karl's total earnings and solve for h
7 h=5(h+2)
7 h=5 h+10
7 h-5 h=10
2 h=10
h=10/2
h=5
Karl works (h+2) hours=(5+2)= 7 hours
Karl works 7 hours a week
Answer:
33.3 is your answer
Step-by-step explanation: