Writing Expressions
How many terms are in this expression:
3a
There is 1 term in this expression.
3(5x+2)
15x + 6
A bowling alley charges $5.00 to rent shoes and $3.50 per game. Write an algebraic expression that gives the total cost in dollars to bowl "w" games. Then find the cost to bowl 3 games.
$3.50w + $5.00 or (3.5w + 5)
it costs $15.50 to bowl 3 games.
What is the coefficient in this expression:
3a+4
The coefficient of this expression is 3.
7(3+3x)
21 + 21x
There are a total of 45 playoff games over "c" days. Write the expression of the number of playoff games happening each day. Then find out how many games are being played in 5 days.
45c
Over 5 days they will play 9 games each day.
What is the constant in this expression:
5k - 3
The constant is -3 in this expression.
18p + 12ap +6pm
There are "w" people in the audience of a soccer game. 5/6 of the audience are students. write the expression for the number of students watching the game. If there are 150 people, how many are students?
5/6w
There are 125 students watching the game.
What is the number of terms, coefficient and constant in the following expression:
a-b-3ab+2c+4x+5y+9
The number of terms in the expression is = 7
The coefficients in the expression are= 1, -1, 3, 2, 4, 5
The Constant in the expression is = 9
2x(5+4)
2x(9) or 18x
The zoo needs to hire"b" staff members for each exhibit. Write the expression for the number of staff they need to hire for 20 exhibits. If they need 3 staff for each exhibit, how many staff do they need to hire?
20b
They need to hire 60 staff members for the 20 exhibits.
How many terms are in this expression:
5a+4b-3c+2x+5
3x(2y+3b+2y+4)
12xy + 9xb + 12x
Tonya has "q" quarters, "d" dimes and "n" nickels in her pocket. Write an algebraic expression that gives the total amount of change she has in her pocket. (Hint: what is the value of each coin?)
.25q + .10d + .05n