X - 5y = 0 (1)
15x + 10y = 17 (2)
From (1),
2x - 10y = 0 (3)
(2) + (3),
17x = 17
x= 1
Sub x=1 into (1)
x - 5y = 0
- 5y = -1
y = 1/5
Therefore x = 1, y = 1/5.
Hope it helps : )
It's not clear what "tree numbers" or a "gaff" are.
This is what I got buddy, hope I could possibly help in a way.
Answer:
NO, YES, YES, NO
Step-by-step explanation:
Subsitute the number they give you and then solve. Finally, see if the equation is true.
13 - 7 = 20 This is equation is not true. (NO)
15 · 8 = 120 This equation is true. (YES)
24/12 = 2 This equation is true. (YES)
5 = 10 + 5 This equation is not true. (NO)
Answer: A=750 +75*t
B=900 +25*t
There would be 975 students in each high school in year 3 when they are expected to have the same number of students.
Step-by-step explanation:
A = B
750 +75*t=900 + 25*t
Solving:
75*t -25*t= 900 - 750
50*t= 150
t=3
This indicates that in year 3 both High Schools are projected to have the same number of students. To get that amount, you simply replace this value in the expressions:
A=750 +75*t= 750 +75*3= 975
B=900 + 25*t=900 + 25*3= 975
There would be 975 students in each high school in year 3 when they are expected to have the same number of students.
