Which of the following is the decimal form of 34.9%?

A. 3,490

B. 3.49

C. 0.349

D. 34.9

Answer Explanation:

To convert a percentage to a decimal, divide the given percentage by 100. So, 34.9% becomes:

The decimal form of 34.9% is 0.349.

Therefore, the Correct Answer is C.

Q #1: A macaroni and cheese recipe calls for 4/7 cup of flour for every 2 1/5 cup of milk. To make a bigger batch, the chef uses 4 cups of flour. Which of the following would be the amount of milk needed for the bigger batch?

A. 15 1/5 cups

B. 15 2/5

C. 12 8/15 cups

D. 15 cups

Answer Explanation

To find the required number of cups of milk, we need to set up a proportion equation. If we let x be the required number of cups and cups of flour as numerator and cups of milk in denominator, then the result proportion becomes:

We cannot multiply mixed fractions with any number, so we change 2 1/5 into an improper fraction as

The proportion equation becomes

Cross-multiply to solve for x

As a mixed fraction, 77/5 becomes 15 2/5. Therefore, to make a bigger batch, the chef needs 15 2/5 cups of milk.
Q #2: Four friends are sharing a pizza. One friend eats a third of the pizza. The other three friends equally divide the rest among themselves. What portion of the pizza did each of the other three friends receive?

A. 7/9

B. 1/3

C. 1/3

D. 2/9

Answer Explanation

We are asked to find a fraction of pizza other three friends got.

A whole pizza represents 1, and one friend eats 1/3 of 1=1/3*1=1/3

Now, the remaining pizza is 1-1/3=3/3-1/3=2/3

The three friends share 2/3 of pizza equally. So, each friend gets

Therefore, each of the three friends get 2/9 of the pizza.
Q #3: Which of the following is the decimal equivalent of 9/25?

A. 36

B. 0.36

C. 3.6

D. 0.25

Answer Explanation

9/25 is the same as 9÷25. Using the calculator, we get 0.36.

Thus, 9/25 in decimal form is 0.36.