Given:
Triangular garden
smallest side: x
medium side: x + 5ft
largest side: 2x - 6ft
Perimeter: 47 ft.
Perimeter = smallest side + medium side + largest side
47 ft = x + x + 5ft + 2x - 6ft
47 ft - 5ft + 6ft = 4x
48ft = 4x
48ft / 4 = 4x / 4
12 ft = x
smallest side: x = 12 feet
medium side: x + 5ft = 12ft + 5ft = 17 ft
largest side: 2x - 6ft = 2(12ft) - 6ft = 24ft - 6ft = 18ft
Perimeter: smallest + medium + largest
47ft = 12ft + 17ft + 18ft
47ft = 47ft
<span>1.333333333333333.... = 4/3.
To find this:
x = 1.3333333333333...
Multiply by 10:
10x = 13.3333333333...
Subtract x = 1.3333333333333333....:
9x = 12.
Divide by 9:
x = 12/9 = 4/3.</span>
Its going to be 3/7 because 3 is the first number and 7 is the second
Okay so you have to do
138 times .40-move the decimal over 2 times
that is 55.2 so 40 percent of 138 is 55.2 so add that on to 138 to get 192 students at the school. There you go :)
