Math Class 1 Flashcards

Questions and Answers

Which number is the greatest among -2/3, -0.7, -1.3, -4/3?

-1.3

-2/3

-0.7 (correct)

-4/3

How much milk is needed if a macaroni and cheese recipe calls for 1/3 cup flour for every 1 1/5 cup milk and the chef uses 2 cups of flour?

7 1/5 cups

What is the more cost-effective option for purchasing at least 50 soft drinks given the prices?

2 packs of orange and 1 pack of cream soda

What is the dependent variable when determining the cost of pizza based on diameter, number of toppings, and amount of cheese?

cost of pizza Signup and view all the answers

What is the correct amount of vanilla in mL if a recipe calls for 2.5 teaspoons of vanilla and 1 teaspoon equals approximately 4.93 mL?

12.325 mL Signup and view all the answers

What is the best estimate of the number of centimeters in 1 yard?

90 cm Signup and view all the answers

What is the equivalence in pounds for 50 kg?

110 lb Signup and view all the answers

What is the probability of selecting a red ball from a bag containing 5 green balls, 4 red balls, and 3 yellow balls?

1/3 Signup and view all the answers

What is the median of the data set: 5, -3, -10, -2, 0?

0 Signup and view all the answers

Which equation represents the area (A) of a rectangle if the length is 5 feet greater than its width?

A = x(x + 5) Signup and view all the answers

What is the percentage of weight lost if a person weighed 180 lb and then 160 lb three months later?

11% Signup and view all the answers

What is an appropriate unit of measure to express the weight of a spoon?

gram Signup and view all the answers

What equation represents Kwame's uncle's age (u) as it relates to Kwame's age (k) if he is seventeen less than 3 times Kwame's age?

u = 3k - 17 Signup and view all the answers

What is the length of the unknown leg of a right triangle with one leg length of 8 feet and a hypotenuse of 12 feet?

4 feet Signup and view all the answers

What is the value of x in the equation |8x - 4| - 10 = 2?

x = -1 or x = 2 Signup and view all the answers

What is the result of the expression [2(3 + 5 x 3)] / (12 divided by 2)?

6 Signup and view all the answers

What portion of the pizza did each of the other 3 friends receive if 4 friends are sharing a pizza and 1 friend eats half of it?

1/6 Signup and view all the answers

What is the decimal form of 87.5%?

0.875 Signup and view all the answers

How many gallons of water is in one fully filled bucket if a bucket containing 2 4/5 gallons of water is 1/3 full?

8 2/5 Signup and view all the answers

What is the best decimal approximation of 10 times the positive square root of 20?

44.7 Signup and view all the answers

Which of the following is the greatest value among 4.25, 10/3, 4.4, and 9/2?

9/2 Signup and view all the answers

Solve for x in the equation (x/y) - z = rw.

x = y(z + rw) Signup and view all the answers

How many milliliters are there in 0.5 liters?

500 Signup and view all the answers

Which is the independent variable in the equation f(t) = 4t + 9?

t Signup and view all the answers

What is the correct conversion to degrees Celsius from 95 degrees Fahrenheit?

35 degrees Celsius Signup and view all the answers

What is the final price on Thursday if a pharmaceutical company stock price was $50.33 on Monday, increased by $2.35 on Tuesday, decreased by $1.07 on Wednesday, and then increased by $0.75 on Thursday?

$52.36 Signup and view all the answers

What is the decimal equivalent of 7/25?

0.28 Signup and view all the answers

What is the circumference of a circle with an area of 49 in² expressed in terms of pi?

14 in Signup and view all the answers

How many more dimes does a child have than quarters if there are twice as many quarters as pennies, four times as many nickels as pennies, and five times as many dimes as pennies?

10 times as many Signup and view all the answers

What is the total number of whole boxes (2 ft x 2 ft) that can be stored in a room measuring 9 ft x 9 ft x 9 ft?

92 Signup and view all the answers

What is an appropriate unit of measure to express the length of a dollar bill?

centimeters Signup and view all the answers

Which graph is the best way to display the frequency of which days of the week students get up after 8 a.m.?

bar graph Signup and view all the answers

As the number of credit hours a student takes in a semester increases, what is the independent variable?

number of credit hours Signup and view all the answers

How much flour is needed to make 90 cookies if a recipe calls for 2 ¼ cups to yield 36 cookies?

5 5/8 cups Signup and view all the answers

What is the mean of the test scores listed: 100, 78, 47, 84, 93, 78?

80 Signup and view all the answers

Study Notes

Greatest Number Comparison

Among -2/3, -0.7, -1.3, -4/3, the greatest number is -0.7.

Recipe Proportions

A macaroni and cheese recipe using 1/3 cup of flour for every 1 1/5 cup of milk requires 2 cups of flour, resulting in 7 1/5 cups of milk needed.

Cost-Effective Drink Selection

For purchasing at least 50 soft drinks, the most cost-effective option is 2 packs of orange and 1 pack of cream soda.

Dependent Variables

In the pizza cost equation, the dependent variable is the cost of pizza.

Volume Conversion

A recipe calling for 2.5 teaspoons of vanilla translates to approximately 12.325 mL.

Yard to Centimeter Conversion

One yard is approximately 90 centimeters.

Kilogram to Pound Conversion

50 kg is equivalent to 110 lb, using the conversion rate of 2.2 lb/kg.

Probability Calculation

The probability of randomly selecting a red ball from a bag containing 5 green, 4 red, and 3 yellow balls is 1/3.

Median Calculation

The median of the data set {5, -3, -10, -2, 0} is 0.

Area Equation of a Rectangle

The area (A) of a rectangle whose length is 5 feet greater than its width is represented by the equation A = x(x + 5).

Weight Loss Percentage

A person weighing 180 lb and later 160 lb has lost approximately 11% of their weight.

Weight Measurement

The appropriate unit of measure for the weight of a spoon is grams.

Age Relation Equation

Kwame's uncle's age (u) can be expressed as u = 3k - 17, where k is Kwame's age.

Pythagorean Theorem

In a right triangle with one leg measuring 8 feet and hypotenuse of 12 feet, the length of the unknown leg is approximately 4 feet.

Absolute Value Equation

The equation |8x - 4| - 10 = 2 yields solutions x = -1 or x = 2.

Mathematical Expression Evaluation

The expression [2(3 + 5 x 3)] / (12 / 2) evaluates to 6.

If 4 friends share a pizza and one eats half, the remaining portion is divided equally, giving each of the other 3 friends 1/6 of the pizza.

Percentage to Decimal Conversion

87.5% can be expressed as 0.875 in decimal form.

Water Volume Calculation

A bucket with 2 4/5 gallons of water, which is 1/3 full, corresponds to a fully filled bucket capacity of 8 2/5 gallons.

Square Root Approximation

The best decimal approximation of 10 times the positive square root of 20 is 44.7.

Greatest Value Comparison

Among the values 4.25, 10/3, 4.4, and 9/2, the greatest is 9/2.

Algebraic Rearrangement

The solution for x in the equation (x/y) - z = rw is x = y(z + rw).

Milliliters in Liters

There are 500 milliliters in 0.5 liters.

Independent Variable Identification

In the function f(t) = 4t + 9, the independent variable is t.

Temperature Conversion

A temperature reading of 95 degrees Fahrenheit converts to 35 degrees Celsius using the formula c = 5/9 (f - 32).

Stock Price Calculation

A pharmaceutical company's stock price changes as follows: $50.33 (Monday), +$2.35 (Tuesday), -$1.07 (Wednesday), +$0.75 (Thursday), resulting in a final price of $52.36.

Fraction to Decimal Conversion

The decimal equivalent of 7/25 is 0.28.

Circle Area and Circumference

A circle with an area of 49 square inches has a circumference of 14 inches, expressed in terms of pi.

Counting Coins Problem

A child’s collection contains dimes that are 10 times the number of quarters, indicating a significant surplus of dimes compared to quarters.

Box Storage Calculation

In a room measuring 9 ft x 9 ft x 9 ft, a total of 92 whole boxes measuring 2 ft x 2 ft can be stored without altering their size.

Dollar Bill Measurement

The appropriate unit of measure for the length of a dollar bill is centimeters.

Data Frequency Display

A bar graph is the best method to display the frequency of students' wake-up times after 8 a.m. across the week.

Independent Variable in Tuition Fees

In a scenario where tuition, access fees, and student loans increase with credit hours taken, the independent variable is the number of credit hours.

To make 90 cookies from a recipe requiring 2 ¼ cups of flour for 36 cookies, the baker will need 5 5/8 cups of flour.

Mean Calculation of Test Scores

The mean of the test scores {100, 78, 47, 84, 93, 78} is calculated to be 80.

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Description

This quiz features flashcards designed to reinforce basic math concepts for Math Class 1. Topics include comparing fractions, scaling recipes, and price comparisons. Perfect for students looking to practice their skills in a fun way!