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6 GoMath - Home instruction

6th grade GoMath assignment for Friday 4/3/20

Login to my.hrw.com and complete the assignment "11.3 Multiplication and Division Equations - Interactive Student Lesson ".
Assignment will be available from 8 AM until 9 PM.
Be sure to click "Submit" so you can get credit for the assignment!
Feel free to email with any questions.

7 Pre-Algebra - Home instruction

7th grade Pre-Algebra assignment for Friday 4/3/20

Read all of the examples, and try the "Quick Checks" #1, #2, and #3 (answers below).

Complete the textbook problems on p. 468-469 #5-30 and then use your answer key to check answers.

VERY IMPORTANT : a prism is a 3-D shape with 2 opposite and congruent bases, and is NAMED by its base.  So, a rectangular prism has rectangular bases; a triangular prism has triangular bases; a hexagonal prism has hexagonal bases; a square prism (cube) has square bases; a circular prism (cylinder) has circular bases, etc.

Feel free to email with any questions.

1. If the height of the prism is doubled, the new height would be 10 in.
The formula for Volume of ANY prism is (B)(h), where B is the area of the base, and h is the distance between the bases.
So the volume would be (3)(4)(10) = 120 cubic inches

2. Always remember that the height of ANY prism is actually the distance between the bases, so the height of this triangular prism is 6 cm.
If we double the height, the new height is 12 cm.
Since this is a triangular prism, the base is a triangle, so B stands for area of the triangle, or (1/2)(base of triangle)(height of trangle).
So B = (1/2)(3)(4), and h is 12, so V = (1/2)(3)(4)(12) = 72 cubic cm

3a. A cylinder is really just a prism with circular bases.
So the Volume of a cylinder = (area of circle)(distance between the 2 circles)
In this problem, V = (pi)(9 squared)(24) = about 6107 cubic cm

3b. No, if you use 20 instead of 16, your estimate would be too big.