Vocabulary
When you _______ an expression, you replace each variable with a given
Evaluate
-6 -6f + 7 -3f -9
9f - 8
10.2x + 9.4y when x=2 and y=3
48.6
Write an equivalent expression for -3(7 + 5g)
-21-15g
What expression can be used to determine the total cost of buying g pounds of granola for $3.25 per pound and f pounds of flour for $0.74 per pound?
3.25g + .75f
To evaluate A + 3 when A=7, you can _____ 7 for A in the expression
Substitute
1/3x - 5
1/2k + 3/8 When K is 1/4
4/8 OR 1/2
Write an equivalent expression to K+4+3-26
-K + 7 OR 7-K
Write an expression that represents the height of a tree that began at 6 feet and increases by 2 feet per year. Let y represent the number of years.
6 + (2)y
Each part of an expression that is separated by a plus or minus sign is a ______
Term
2n + 5.5 -.9n -8 +4.5p
1.1n + 4.5p - 2.5
3d - 4
When d is 1.2
-0.4
Write an equivalent expression to (W+9)+3 using ASSOCIATIVE PROPERTY
W+(9+3) OR W + 12
To rent a car for a trip, four friends are combining their money. The group chat shows the amount of money that each puts in. One expression for their total amount of money is 189 plus p plus 224 plus q.
- Use the Commutative Property to write two equivalent expressions.
P+189+244+q
224 +q +189 +P
The set of rules to determine the order in which operations are performed is called the ______
Order of operations
12 + (-4) -2/5j -4/5j +5
13 -6/5j OR. 13 - 1 1/5j
34 + 4/9w
When w= -1/2
34 4/18 OR 34 2/9
Write an equivalent expression To -3 + 2/3y -4 -1/3y
1/3y -7 OR -7 + 1/3y
An ____ is a mathematical phrase that can contain numbers, variables, and operation symbols
Expression
8h + (-7.3d) -14 +5d -3.2h
4.8h -2.3d -14
0.5f -2.3g
When f=12 & g=2
1.4
Write an equivalent expression to 3(x-5)
3x -15