7A Solve Equations
Solve the equation:
x + 9 = 16
x = 7
How do I read the following inequality?
x > 7
x is greater than or equal to 7
What is the formula for the area of a parallelogram?
Area = base x height
Describe how to find the surface area of a rectangular prism.
Find the area of all the rectangles that it's made of and add them all together.
Two lines that do not intersect are called ______________ lines.
parallel
Solve the equation:
19 = c - 14
c = 33
Name one number that is a solution to the following inequality:
b < 13
You can say any number that is less than 13.
What is the formula for the area of a triangle?
Area = base x height
2
Describe how to find the volume of a prism.
Find the area of the front (rectangle or triangle), then multiply by the distance between the front and back.
A math sentence stating that two expressions are equal is called an ___________________.
equation
To solve the following equation, what would I do to both sides? What is the solution to the equation?
7b = 56
Divide by 7 on both sides.
b = 8
Solve the inequality, and tell me what the number line looks like.
9b < 63
b < 7
filled in circle at 7, arrow goes to the left
Draw a picture of a parallelogram with a base of 8cm and a height of 4.5cm. What is the area? (Don't forget units in your answer)
36cm2
Find the Volume of the Rectangular Prism on the right side of the board. (You must state the units in your answer)
432m3
A quadrilateral with only one pair of parallel sides is called a ______________________.
trapezoid
What do you do on both sides, and what's the answer?:
m = 14
9
m = 126
Solve the inequality, and tell me what the number line looks like.
b > 4.5
4
b > 18
open circle at 18, arrow to the right
Draw a picture of a right triangle with a base of 6.2m and a height of 12m, and find its area. (Don't forget units in your answer)
37.2m2
Find the Surface Area of the Rectangular Prism on the right side of the board.
384m2
How do you solve an equation?
Get the variable by itself on one side by getting rid of whatever is with it.
The difference between Rick's bank account and Julie's bank account is $52. If Julie has $90, Write and solve an equation to find how much money is in Rick's account.
What is the equation? What is the solution?
r - 90 = 52 r = 142
90 - r = 52 r = 38
Solve the inequality, and tell me what the number line looks like.
24.6 > m - 13.1
m < 37.7
open circle at 37.7, arrow to the left.
Draw a trapezoid with bases of 5yd and 9yd, and a height of 7yd, and then find the area. (Don't forget units in your answer)
49yd2
Find the Surface Area and Volume of the Triangular Prism on the right side of the board. (You must state the units in your answer)
SA = 357 yd2
V = 315 yd3
List the 3 formulas for area.
Parallelogram =
Triangle =
Trapezoid =
b x h
b x h ÷ 2
(b1 + b2) ÷ 2 x h