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find the value of \(2 \frac{1}{4} \times 4 + 2 \frac{1}{4} \times 3 + 2 \frac{1}{4} \times 2 + 2 \frac{1}{4} \times 1\) .

 

(as a mixed number)

 May 4, 2020
 #1
avatar+111360 
+1

Need to be careful here  !!!

 

We can wrtite this  in a better manner

 

(2 + 1/4) (4 + 3 + 2 + 1)  =

 

(9/2)  (10) =

 

45

 

 

cool cool cool

 May 4, 2020
 #3
avatar+62 
+1

thank you cphill! i checked, but that's not right.. hm

andrewstanells  May 4, 2020
 #5
avatar+1458 
0

Hi, but the question says...

 

2 1/4

 

= 2*4+1 / 4

 

= 9/4

 

But you wrote 9/2???

 

hugomimihu  May 4, 2020
 #8
avatar+111360 
+1

OOPS!!!!!....sorry.....9/2  should be 9/4

 

The guys below  had the correct answer  !!! 

 

cool cool cool

CPhill  May 4, 2020
 #2
avatar+1458 
+4

2 1/4  = 9/4

 

Use dist. property to get

 

9/4 * 10 = 90/4

 

90/4 = 22 1/2

 May 4, 2020
 #4
avatar+62 
+2

alright, thank you hugomimihu!

andrewstanells  May 4, 2020
 #5
avatar+8 
+5

We can factor out one of the terms, 2 1/4.

When we factor it out we get...

2 1/4(4+3+2+1)

Adding these together we get

2 1/4(10)

This is equal to

22 1/2

 May 4, 2020
 #7
avatar+62 
+2

noice, thank you sd99Sd99!!

andrewstanells  May 4, 2020

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