Answer: -1
2-1=1
1/-3+2
1/-1
=-1
Answer:
To show that an equation is an identity: Start with either side of the equation and show that it can algebraically be changed into the other side. Or start with both sides of the equation and show that they both can be changed into the same algebraic expression.
Step-by-step explanation:
Answer: 45
Explanation: Remember that dividing by a fraction is the same thing as <em>multiplying by the reciprocal</em> of that fraction or that fraction flipped.
Also, think of the 15 in this problem as 15/1.
So we can rewrite 15/1 ÷ 1/3 as 15/1 · 3/1.
Multiplying across the numerators and the denominators,
we find that our answer is 45/1 or just 45.
Half of 23 would 11.5 and you had to do was divide 23 by 2
