Explore a diverse range of topics and get expert answers on IDNLearn.com. Get the information you need from our community of experts who provide accurate and comprehensive answers to all your questions.
Answer:
72 lb
Step-by-step explanation:
Write and solve an equation of ratios:
80 pounds x
----------------- = ------------------
100 pounds 90 pounds
Cross multiplying, we get (100 pounds)x = 7200, or x = 72 pounds.
The 80 pound child's weight includes 72 pounds of water.