Here is how to work the problem... basically you solve for one of the variables in one of the problems and then use substitution into the other. once you have both answers you substitute them both Into the last equation to solve.
For number 1, add the sides of the triangle. They are all given. The answer is 19.
For number 2, you use the formula for circumference, 2 times pi times radius. The answer is 43.96.
For number 3, I assume that 5 is half of one side. You would double 5 to get ten and multiply it by four, since there are four sides in a square. The answer is 40.
For number 4, you would multiply 5 times pi, but don't solve it. ( since the directions are to leave the answer in terms of pi) The answer is 5 pi.
For number 5, add all the sides together like number 1. The answer is 18.
Answer:
25.9 miles
Step-by-step explanation:
To find out how far he can go on one gallon of gas, we divide miles by gallons.
311 miles/ 12 gallons
25.91666666 miles per gallon
So on one gallon of gas, he can go 25.9166666666 miles
Rounding to the nearest tenth.
25.9 miles
Answer:n=-3.1
Step-by-step explanation:
2n + 3 = -3.2
Subtract 3 on both sides
2n+3-3=-3.2-3
2n=-6.2
Divide 2 on both sides
2n/2=-6.2/2
n=-3.1
Y= -5.8 is the correct answer
