Answer:
x=-1
Step-by-step explanation:
-3x+8=11
subtract 8 from both sides
-3x=3
divide by -3 on both sides
x=-1
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:
x = 2
Step-by-step explanation:
3(5x - 2) + 1 = 25 (Given)
3(5x) + 3(-2) + 1 = 25 (Distributive Property of Equality)
15x + -6 + 1 = 25 (Simplify)
15x - 5 = 25 (Simplify)
15x + 5 + 5 = 25 + 5 (Addition Property of Equality)
15x = 30 (Simplify)
(Division Property of Equality)
x = 2 (Simplify)
Answer:
y = 
Step-by-step explanation:
Given
2(3y + 5) = 3(5y + 3) ← distribute parenthesis on both sides
6y + 10 = 15y + 9 ( subtract 6y from both sides )
10 = 9y + 9 ( subtract 9 from both sides )
1 = 9y ( divide both sides by 9 )
= y