Question 1
Distributing 2 on 5y -2, we will get
But student get
So the student make an error in step 2 .
Second question
To get rid of y, we have to multiply first equation by -8 and add the resultant equation with equation Q .
Answer:
the percentage profit is 20%
Step-by-step explanation:
Given that
Sean paid £10 for 24 chocolate bars
He sold all 24 chocolate bars for 50p each
we need to find out the percentage profit
Since he paid £10 and sale value is (24 × 0.50) i.e. £12
So, the percentage profit is
= (£12 - £10) ÷ (£10)
= 20%
Hence, the percentage profit is 20%
Answer:
Red
Step-by-step explanation:
Side angle Side
side LM cong to side NQ
angle m cong to angle Q
side Mn cong to side PQ
Hello!
Let's solve this equation for y first.
-10x+y=4
Add 10x to both side.
y=10x+4
Now, let's plug in our x-values to find y.
x: -2, -1, 0, 1, 2
y:-16,-6, 4,14,24
I hope this helps!
