Khali and Juan are using ribbon to decorate their art project. The ratio of the length of Khali's ribbon to the length of Juan's ribbon is 8:5 If Khali used a total of 72 cm of ribbon, how much did Juan use?

John can eat 10 cookies in 1/2 hr how many cookies can he eat in 45 minutes make a proportion and solve

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.