Justify each step in solving the equation 4 7( 3) x x = − by writing a reason for each statement. statement reason 1. 4 7( 3) x x = − 1. 2. 4 7 21 x x = − 2. 3. − =− 3 21 x 3. 4. x = 7 4

Solve 2x+y=3 x+y=5 in substitution method

Which of the following values cannot be probabilities? 0.08, 5 divided by 3, startroot 2 endroot, negative 0.59, 1, 0, 1.44, 3 divided by 5 select all the values that cannot be probabilities. a. five thirds b. 1.44 c. 1 d. startroot 2 endroot e. three fifths f. 0.08 g. 0 h. negative 0.59

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)