Supporting 7th Grade Math TEKS

Front

What is the total number of frogs in a population if 12 out of every 180 frogs have spots?

Back

1,200 frogs.

Front

How do you calculate the number of frogs without spots in a population of 1,200 if 12 out of every 180 have spots?

Back

1,200 - (1,200 * (12/180)) = 1,120 frogs without spots.

Front

What is the probability of landing on an even number if a spinner has 8 congruent sections numbered 1 to 8?

Back

There are 4 even numbers (2, 4, 6, 8), so the probability is 4/8 or 1/2.

Front

If a spinner is spun 120 times, how many times would you expect it to land on an even number?

Back

Expected number = 120 * (1/2) = 60 times.

Front

What is net worth?

Back

Net worth is the total assets minus total liabilities.

Front

If Phillip's assets total $200,000 and his liabilities total $158,500, what is his net worth?

Back

Net worth = $200,000 - $158,500 = $41,500.

Front

What is a random sample in statistics?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

What can you infer if a survey shows that more customers prefer country music over jazz, classical, or rap?

Back

Customers are more likely to select country music than jazz, classical, or rap.

Front

How many milliliters are in 1 liter?

Back

1 liter = 1,000 milliliters.

Front

How many fluid ounces are in 3 liters?

Back

3 liters = 3,000 milliliters; 3,000 ml / 29.6 ml/oz ≈ 101 fl oz.