Writing algebraic expressions
Write an expression for the product of 3 and w.
What is 3w?
The sum of 27 and a number n.
27 + n
3a-2 when a=7
3(7)-2 = 19
Evaluate when p = 6. p + 9
What is 15?
Write an expression for w less than 8.
What is 8 - w?
Twice a number x
2x
p/4 + 3 when p = 24
24/4 + 3 = 9
Evaluate the expression for 31 - g when g is 3.
What is 28?
Write an algebraic expression that can be used to determine the total cost of buying "G" pounds of granola for $8.78 per pound and "F" pounds of flour for $1.25 per pound.
8.78G + 1.25F
13 less than a number q.
q-13
7(n+4) when n=8
7(8+4) = 84
Evaluate the expression for 4w when w is 13.
What is 52?
the quotient of a number and 4.
n/4
(30/b) + 1/2 when b = 1/3
90 1/2 or 90.5
Evaluate the expression 2rz - 9 when r is 2 and z is 5.
What is 11?
(24/4 - C) * A when A=1/4 and C=3/8
1 13/32
Evaluate the expression 3(x + 4) - w, when x is 2/3 and w is 4/5.
13 1/5