Answer:
x=4
y=-3
Step-by-step explanation:
3x+4y=0
2x+5y=7
Change 3x+4y=0 into y= -3/4x
so substitute for y
2x-15/4x=7
-1 3/4x = 7
x=-4
substitue x for y and get
-3/4 * 4
y=-3
Factorising an equation is putting it into bracket form.
This has square numbers and so needs double brackets
(5x - y) (5x+y)
If you then check this by multiplying the brackets out again you will get:
5x^2 - 5xy + 5xy - y^2
The positive and negative 5xy's cancel each other out and you are left with its original form. Your answer is
(<span>5x - y) (5x+y)</span>
18 = x times 8
to solve this do 8 dive by 8 than cross it out than 18 dive by 8 which is 2.25 i think this is the answer
1m= 3.27ft
3.5×3.37= 11.79ft
12in = 1ft
99in÷12in=8.25ft
So therefore carla jumped farther
Answer:
69
Step-by-step explanation:
I just kept going up by 3 until the 20th term