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ahrayia [7]
3 years ago
8

the ratio of high school students who were homeschooled to those who attended other schools was three to seven. if there were 90

homeschoolers, what was the total number of high schoolers?
Mathematics
1 answer:
lina2011 [118]3 years ago
6 0

Answer:

210 high schoolers as ratio becomes 90:210

Step-by-step explanation:

we can see that 3:7 can be multiplied if 3 x 3 = 9 then 7 x 3 =21 we just add the zero and find a 90:210 ratio

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In the sequence 3 8 13 18 what term of the series is the number 2218
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By clearly looking at the sequence there are in Arithmetic Progression
So for finding which term is 2218 in that sequence
we have  x_{n} = a+ (n-1)d
Here,
a=3
 x_{n}=2218 & d=5(by looking at the sequence given)
by substituting those values we get our desired result
2218=3+(n-1)5
2218-3=(n-1)5
2215=(n-1)5
2215/5=n-1
453=n-1
n=454
so 454 term is 2218
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