Dimensional Analysis Review

A newborn baby eats 8 times a day. At each feeding, he eats 2.5 ounces of formula. How many days would it take for the baby to eat 1000 ounces?

How many minutes are in a year?

• I can't count that high.
• 525,600min
• 52,560min
• 31,536,000min

How many kilograms of calcium are there in 173 pounds of calcium? (1 pound = 454 grams; 1 kg = 1000 g)

• 1.10 kg

• 78.5 kg

• 110 kg

• 78500 kg

523g to kg

• .523 kg

• .523

• 5.23 kg

• 523 g

If you go to school for 180 days each school year and each school day is 7 hours long, how many hours are spent in school in one school year? Be sure to include the units in your final answer.

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

• 1.54 x 10¹² m

• 1.54 x 10^-12 m

• 1.54 x 10¹⁰ m

• 1.54 x 10^-10 m

Mr. Jolly drove 90 km per hour on South Luzon Blvd. this morning. How many meters per second is this rounded to the nearest tenth of a second?

• 125

• 30

• 25

• 800