ALGEBRAIC EXPRESSION
Today" temperature is 3 degrees warmer than yesterday's temperature. Write an expression to represent today's temperature, t.
3 + t
-7.8 = x + 5
-12.8
x + 7 =12 + 3x -7x
1
| x | =13
13
-13
n/8 = 2/10
1.6
Barbara has saved d dollars for a $65 sweater. Write an expression for the amount of money still needed to buy the swerater.
65-d
z - 1/4 = 7/8
9/8 or 1 1/8
4x + 2 =3x
-2
| x + 6 | =21
15
-27
1/3= x / x-6
-3
Evaluate b - a for b = 11 and a = -5
16
-30= n/3
-90
-(x-4) = 2x + 6
-2/3
3 | y | + 4 =31
9
-9
The ratio of skateboarders to bikers in an extreme sports constest is 7: 2. There are 91 skateboarders , how many bikers?
26
Grapes cost $ 1.99 per pound. Write an expression for the cost of g pounds of grapes.
1.99g
If 6n + 22 =70 find the value of 3n
24
0.2 ( 7 + 2t ) =0.4t + 1.4
all real numbers or infinitely many solutions or R
-4 | x-4| + 8 = 16
No Solution
A tree casts a shadow that is 14 ft long at the same time that a nearby 2ft pole cast a shadow that is 1.75 ft long. How tall is the tree?
12.25ft
Each member of an art club will make the same number of posters to advertise their club. They will make 150 posters total. Write an expression for how many posters each member will make if there are m members. Find how many posters each will make if there are 5 , 10, AND 15 posters.
150/p
30 15 10
5/6 f - 3/4 f + 3/4 = 1/2
-3/19
One photo shop charges .36 per print . Another photo shop charges 2.52 plus 0.08 per print. How many photos does Juan have to print for the cost to be the same.
9
-5 |x + 3 | -7 =-7
|
-3
See drawing on board and solve for x
2.5 ft