Lincoln is working two summer jobs, making $13 per hour lifeguarding and $23 per hour tutoring. Last week Lincoln earned a total of $210 and worked 4 times as many hours tutoring as he worked hours lifeguarding. Determine the number of hours Lincoln worked lifeguarding last week and the number of hours he worked tutoring last week.

Which point is a solution to y s 4x + 5?

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4