Cotangent
Are these ratios equivalent? In a cake recipe, 500 grams of butter are mixed with 800 grams of flour. In a cake recipe, 125 grams of butter are mixed with 200 grams of flour. Two ratios are equivalent if their cross products are equal. Write the ratios as fractions.
and
Are these ratios equivalent? A builder mixes 10 shovels of cement with 25 shovels of sand. A builder mixes 5 shovels of cement with 15 shovels of sand. Two ratios are equivalent if their cross products are equal. Write the ratios as fractions.