Answer:
12 is the answer of this questions.
Step-by-step explanation:
Thank you for you question.
28x+20y =14*4 = 56
28x + 21y = 9*7 =56
=> y=0, x = 2
It is already in simplest form.
HOPE I HELPED!!
18000
Step-by-step explanation:
5000*12%= 600 600× 30= 18000 15 years semi annually = 30 x
X, X+2, X+4 ARE THE 3 POSITIVE CONSECUTIVE INTEGERS.
X(X+2)=8+38(X+4)
X^2+2X=8+38X+152
X^2+2X-38X-8-152=0
X^2-36X-160=0
(X-40)(X+4)=0
X-40=0
X=40 ANSWER FOR THE FIRST INTEGER.
40+2=42 FOR THE SECOND INTEGER.