Question

Leticia simplified an expression. Her work is shown below.
4.5÷1/4+2 1/2-.75×8
Step 1 18+2 1/2-0.75×8
Step 2 18+1.75×8
Step 3 18+14
Step 4 32
Where did Leticia make her first mistake?
step 1
step 2
step 3
step 4

Answer 1

Answer:

Option 2 - Step 2

Step-by-step explanation:

Given : Leticia simplified an expression. Her work is shown below.

Expression - $4.5\div \frac{1}{4}+2\frac{1}{2}-.75\times 8$

Step 1 - $18+2\frac{1}{2}-.75\times 8$

Step 2 - $18+1.75\times 8$

Step 3 - $18+14$

Step 4 - $32$

To find : Where did Leticia make her first mistake?

Solution :

Expression - $4.5\div \frac{1}{4}+2\frac{1}{2}-.75\times 8$

Step 1 - $18+2\frac{1}{2}-0.75\times 8$

As $4.5\div \frac{1}{4} =18$ Step 1 is correct.

Step 2-  $18+1.75\times 8$

Step 2 is in correct first we solve multiply term.

Now steps are as follow,

Step 2 - $18+2\frac{1}{2}-6$

As $0.75\times 8=6$

Step 3 - $20.5-6$

As $18+2\frac{1}{2}=20.5$

Step 4 - $20.5-6$

As $20.5-6=14.5$

Therefore, Step 2 is incorrect.

So, option 2 is correct.

Answer 2

Answer:

answer is b

Step-by-step explanation: