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MArishka [77]
3 years ago
12

Leticia simplified an expression. Her work is shown below.

Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
6 0

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.

lina2011 [118]3 years ago
5 0

Answer:

answer is b

Step-by-step explanation:

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