Adeep sea diver changes his position to the surface of the water by -7/2 meters per minute. write and evaluate an expression to show his position after 3 minutes if he starts at the surface of the water.

-10.5 meters i think

answer:

125 yards

explanation:

75+50=125. that is my answer

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116