Answer:
Jessica bought 2.25 yards more fabric.
Step-by-step explanation:
For Jessica we will consider 5 to be 100% which is 1 in decimals (100÷100=1) of what she bought originally and since she bought 20% (which is 0.20 in decimals 20÷100=0.20) more then we have 100% + 20% = 1 + 0.20 = 1.20 of our original 5. So now we multiply 5×1.20=6, so Jessica bought 6 yards.
Similarly we have Dan who bought 3 yards plus 25% more. Well 25% is 0.25 and so: 100% + 25% = 125% = 1.25. Now, we will multiply 3 × 1.25 = 3.75 yards. Therefore, Jessica bought more fabric. How much more? 6 - 3.75 = 2.25 yards more.
Answer:
The second expression is not equivalent to the initial expression.
Step-by-step explanation:
Given: .
Clubbing the co-efficient of g and constant terms. we get:
This is the first step and is equivalent to the initial expression.
Now, Simplifying the above expression we have:
⇒
⇒
⇒
⇒
This is not the second step done by him. Not equivalent to the initial step.