Mathematics Concepts and Problem Solving

This video tutorial covers grade 7 mathematics problems from the 2021 STAR test, focusing on problems 14 to 27. It includes a review of mathematical formulas, graph interpretation, circle graph analysis, inequality representation, proportional reasoning, slope and equations, volume and area calculations, pie chart analysis, spinner outcomes, and store discount comparisons.

What is the main focus of the video tutorial?

• Grade 7 Mathematics STAAR test from 2021, problems 14 to 27

• Grade 8 Mathematics STAAR test from 2021, problems 1 to 13

• Grade 8 Science STAAR test from 2021, problems 1 to 13

• Grade 7 Science STAAR test from 2021, problems 14 to 27

Which mathematical concept is NOT reviewed in the formula chart?

• Linear equations

• Circumference

• Area of a triangle

• Probability

In problem 14, how many new words does a student learn per week in the language program?

• 20 words

• 25 words

• 15 words

• 10 words

In problem 15, what percentage of students chose pizza at the picnic?

• 10%

• 20%

• 30%

• 40%

In problem 16, what is the maximum weight the moving truck can carry?

• 1400 pounds

• 1800 pounds

• 1200 pounds

• 1600 pounds

In problem 18, what is the resale price of a used book if the owner sells it for 400% of the purchase price?

• $4.50

• $6.00

• $7.50

• $3.00

In problem 19, what is the missing value x in the proportion 6/9 = 9/x?

• 15

• 16.5

• 12

• 13.5

In problem 20, what type of slope does a line have if it is decreasing from left to right?

• Positive slope

• Negative slope

• Zero slope

• Undefined slope

In problem 21, what is the approximate volume of the triangular prism holding the pizza slice?

• 75 cubic inches

• 68 cubic inches

• 57.75 cubic inches

• 48 cubic inches

In problem 22, what is the cost of each hockey game ticket if Hector paid $105 for six tickets?

• $15.00

• $17.50

• $18.00

• $20.00