What should happen if you choose to divide or distribute first?
You should get the same answer! You can divide first and use distribute first on a question to check your answer.
What does it mean to use Inverse Operation?
To change the current operation ( multiplication, division, subtraction or subtraction) to its respective opposite.
What operation are specific to Area and Perimeter?
Perimeter: Addition
Area: Multiplication
Doja Cat earned a $500 bonus for signing a contract with Roc Nation. Her salary is $22 per hour. If her first weeks check including the bonus is $1,204. How many hours did she work?
Equation: 500+ 22x= 1,204
X= 32
For which operations do you change the inequality sign to keep the statement true?
Multiplication and Division
Distribute first:
3(2x +7)= 27
Answer: x=1
Solve: H/-7 = 21
H= 147
Find the area of the figure below
100
Mr. Smith bought a 3D printer for $1,249 and some cartridge's for $80 each. If he paid a total of $1809, how many cartridges were purchased? Write a equation and solve.
Equation: 1249 + 80C= 1809
Answer: C=7
Find the Boundary point of: N/7 -36 > -38
N > -14
Simplify the expression 3-2(4b-8) - (4+10b)
15-18B
Solve: h/-8 -3=1
Answer: h=-32
A triangle has side lengths of (5.5x + 6.2y) centimeters, (4.3x + 8.3z) centimeters, and (1.6z - 5.1y) centimeters. What expression represents the perimeter?
9.8x + 1.1y + 9.9z
An online retailer charges $6.99 plus $.55 per pound to ship electronic purchases. How many pounds is a DVD player for which the total shipping charge is $11.94
Equation: 6.99 + .55P= 11.94
Answer: P =9
Solve and Graph: 18 < -2(12-a)
Boundary Point: 21 < A
Graph:
o ---------------->
Solve for X:
-5 + 2(7x-4)= -9
Answer: x= 2/7
Solve: -5n+7=7
Answer: N=0
The width of a rectangle is 6 2/3 in. The length of the rectangle is twice the width. Which expression cannot be used to determine the perimeter of the rectangle?
A) 6 ⅔ + 2 (6 ⅔ )
B) 6 ⅔ (2) + 2[6 ⅔ (2)]
C) 2[6 ⅔ + 2(6⅔ )]
D) 6⅔ (6)
A) 6 ⅔ + 2 (6 ⅔ )
Mr. Lopez went shopping. He bought an umbrella for $15. He also bought 3 shirts, each of which cost the same amount. Altogether he spent $52.50. Make an equation and find the cost for one shirt.
Equation: 15+3(H) = 52.50
Answer: One shirt cost $12.50
Solve the inequality:
-(-R-10/5) > 4
Answer: R>2
Divide First:
4(M + 12) + 2 = -36
Answer: M= -21.5
Solve: -2x + 6 ≥ 60
Answer: x ≤ -27
The Perimeter of a triangle is 136 centimeters. Side "C" is 5y-10, side "B" is 4Y, and side "A" is 3y+2. What is the length of side "A"?
Answer: 38
There are 91 students registered in 3 sections of algebra. There are twice as many students in section A as in section B and 11 more in section C than in section B. How many students are in each section?
A= 40 B=20 C=31
Solve:
3 ≤ M/-7 + 3
0 ≤ M.................WRONG!! we flip the sign and get
0 ≥ M