Answer:
78.8
Step-by-step explanation:
Mean is just all of your numbers added together and then divided by the total of numbers you have altogether.
85+90+65+75+79 = 394 394÷5 = 78.8
Hope this helped :)
Answer:
x=3
Step-by-step explanation:
7x=21
divide by 7
x=3
Answer: x=−5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−4−7x=31
−4+−7x=31
−7x−4=31
Step 2: Add 4 to both sides.
−7x−4+4=31+4
−7x=35
Step 3: Divide both sides by -7.
−7x
−7
=
35
−7
x=−5
Answer:
x=0
Step-by-step explanation:
the formula for perimeter is l+l+w+w
So 9+9+6+6= 30 meters of fence