Math
The sum of a number and 40
a+40
Evaluate 4x + 1 if x=5
21
Are the expressions equivalent?
x+x and 2x
Yes
A variable is...
A letter representing and unknown value
Divide the sum of x and 28 by 4
(x+28)/4
The product of 5 and a number
5x
Evaluate if x=10
30/x + 5
8
What are the coefficients in this expression?
8x + 4j - 15
8 and 4
This is a number in an expression that never changes
A contant
Write an expression for 85 less than the sum of x and 17
(x+17) - 85
8 more than the quotient of a number and 15
n/15 + 8
Evaluate
b2 - 5 if b=6
31
What are the like terms in this expression?
5x + 32 - 7x + 9
5x and 7x
The answer to a multiplication problem
Product
Shea has $60. She goes to the mall and buys a pair of jeans for $37 and two hats for $8 each. How much does she have left over?
$7
4x4x4
64
Evaluate if x=2 and y=3
4x-2y
2
The expression 30c + 45d represents the cost of daily pet care for c cats and d dogs. How much does it cost for daily care for 8 cats and 3 dogs?
30(8) + 45(3)
240 + 135
$375
This is the answer to a division problem
Quotient
Rosie did (4k + 6) math problems. Kevin did (6k -2) math problems. If k=5 who did more math problems?
Kevin because 28 > 26
Find the sum of 5.234 and 25.9
31.134
Evaluate if x=5 and y=12
3(x+y)
51
A cake has 10 slices. 5 slices were eaten. What fraction of the cake is left?
1/2
A number multiplied by a variable
A store has Takis on sale 4 bags for $16.24. How much does 1 bag cost?
$4.06