A deep sea diver descends 50 feet below the water’s surface each minute. What is the depth of the diver after 6 minutes? Write and solve a math sentence
(-50)x6=-300 feet
Solve for X and *.
2X + * + 5=2X
X=5, * = -5
What is x? What is *?
2(x - 3) + 5* = 2* + 4
x= -10 and * =10
-7 - 8
-15
x2 + 2 - 6x=? When x=8
18
Josh’s checking account claims he is $30 in debt. He babysits for 4 hours and makes $10 every hour and deposits this money into his checking account. What would Josh’s current balance be?
(-30) + 4x(10) = (-30) + 40 = $10
Solve for X and *.
3* + x + 2=2X + 10
X = -2, and * = 2
What is x? What is *?
2x - 3(-x) - 5 = 7 + (-x)
x = 2 and * = -2
-224 / 8
-28
-91 ÷ 7
-13
The temperature at 4:00 A.M. was -8 degrees Fahrenheit. At 6:00 P.M. the temperature was 12 degrees Fahrenheit. What was the change in temperature from 4:00 A.M. to 6:00 P.M.? Write and solve a math expression.
12 - (-8) = 12 + (+8) = 20 degree temperature change
Solve for X and *.
2(-x + 3) + 5x = x + 20
x = 7, and -x = -7
What is x? What is *?
3(-x) + 2 = -10 + x
x = 3 and -x = -3
-8 + 12
4
9x + 3y = ? when x=4 and y =3
45
Joe plays running back on the football team. Sometimes he gains yardage (+5 means a 5-yard gain). Sometimes he loses yardage (-3 means a 3-yard loss). Determine Joe's total yardage in each game below.
play 1: +4
play 2: - 6
play 3: +7
play 4: +1
play 5: - 8
-2 yards lost in total
x/4=12
x=48
What is x? What is *?
3x - 2(* + 4) = 2x + 1
x = 3 and * = -3
-9 * -4
36
-13 * -24
312
The temperature each day is shown below. What was the average (or mean) temperature?
Monday: 2
Tuesday: -7
Wednesday: 8
Thursday: -4
Friday: -1
-2/5
Solve for x and (-x)
3x + 2(-x) + x + 3 = x + 9
x = 6, and (-x) = -6
What is x?
x + 4 = -6
x = -10
-4 - (-5)
1
16 + -22
-6