Answer:
x=-1
Step-by-step explanation:
18 is the base of the isosceles triangle, which renders 3x + 2 the same measurement as 11.
Set the two side measurements equal to each other
3x + 2 = 11
Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.
First subtract 2 from both sides
3x + 2 (-2) = 11 (-2)
3x = 11 - 2
3x = 9
Next, isolate the x. Divide 3 from both sides
3x/3 = 9/3
x = 9/3
x = 3
-------------------------------------------------------------------------------------------------------------------
3 is your answer for x.
-------------------------------------------------------------------------------------------------------------------
hope this helps
I= interest
p= principal= $200
r= rate= 7%
t= time= 1 year
SIMPLE INTEREST FORMULA
i= prt
i= ($200)(7%)(1)
convert 7% to decimal (7% ÷ 100)
i= (200)(0.07)(1)
multiply
i= $14.00
ANSWER: $14.00 is the interest on a $200 principal at a rate of 7% for a period of 1 year.
Hope this helps! :)