Answer:
18x
Step-by-step explanation:
18x times 18x
so the side is 18x because it was squared
Answer:
6
Step-by-step explanation:
Time used total: 50 hours.W+C = 50 (1) Total water used is 1900 L.Woody family used: 40W; Carter family used 35C.Equation showing how much water both families used:40W + 35 C =1900. (2) We have a system with two equations and two variables. We can use substitution method to solve the system. From equation (1) we express W:W=50 - C. (1a) We substitute the variable in equation (2):40(50 - C) +35C =1900. We open the parenthesis2000 -40C +35C =1900, We combine like terms2000 -5C =1900, We subtract 2000 from both sides of the equation-5C = 1900 - 2000, We simplify-5C = -100, We divide by -5C = 20. We substitute the values of C in the equation (1a) and find the value of W:W = 50 - C,W = 50 -20 =30. The Woody family used water for 30 hours and the Carter family used water for 20 hours.We check our work to be sure we did not make any mistakes:Total water used: 40 x 30 + 35 x 20 = 1200 + 700 = 1900 L.
Answer:
Austin is correct.
Step-by-step explanation:
19.5 has a tens, ones, and tenths place. 8.21 has a ones, tenths, and hundredths place.
Answer: X= -9
Step-by-step explanation: solve for x by simplifying both sides of the equation then isolating the variable