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xz_007 [3.2K]
3 years ago
5

Parking lot has 121 spots. Ratio of senior to junior is 7 to 4. How many spots go to each grade level?

Mathematics
1 answer:
Andrej [43]3 years ago
6 0
I am going to build a chart this is best when using ratios 

              seniors    junior  total
                 7              4       
                 *?             *?     *?
    Totals                          121   

The way we fill out this chart is that we add the rows and multiply the columns. 

So we add 7 + 4 and fill it in our chart we get 11 

            seniors    junior  total
                 7              4       11
                 *?             *?     *?
    Totals                          121   

now to find the *? need to divide 121/11 to get *?

121/11 = 11

so now our chart looks like this 
            seniors    junior  total
                 7              4       11
                 11            11     11
    Totals                          121   

Now we multiply each column 

so
7 * 11  = 77
 4*11 = 44

now our chart look like this 

            seniors    junior  total
                 7              4       11
                 11            11     11
    Totals     77           44      121   

so seniors get 77 spaces 
and juniors get 44 spaces. 

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kari74 [83]
Hi There!

<span>What is 32/48 in SIMPLEST form?

</span>32÷16=2
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<span>So the answer is </span><span>2/3</span>
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