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4vir4ik [10]
2 years ago
11

Solve the systems of equations using substitution.

Mathematics
1 answer:
statuscvo [17]2 years ago
8 0

I'm sure on boxes 1 and 3 but not on the 2nd box

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Solve for the unknown quantity of x<br> 15/2= 60/x
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Plss help i’ll give brainliest thank you!
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4 0
3 years ago
8 books cost \$19.60$19.60dollar sign, 19, point, 60.
snow_tiger [21]

Answer: C=[ (10) x (19.60)÷ (8)]

Step-by-step explanation:

Given , The cost of 8 books = $ 19.60

Then, By UNITARY method , the cost of one book = ( Cost of 8 books ) ÷ ( 8)

i.e. The cost of one book = ($19.60) ÷ ( 8) ...(i)

Now , cost of 10 books = (10) x (Cost of one book)

From (i) , we get

Cost of 10 books =$[ (10) x (19.60)÷ (8)]

Let C be the cost of 10 books ( in dollars) .

So , the equation would help determine the cost of 10 :

C=[ (10) x (19.60)÷ (8)]

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3 years ago
Can someone help me plz.
masha68 [24]
He’s right, but can I have Brainly I’m so close to virtuoso
5 0
3 years ago
What is 3/ 4 of 6 / 7?
Vika [28.1K]
3/4 of 6/7.    The of means multiplication.

= 3/4  *  6/7.  2 into 4 is 2 and 2 into 6 is 3.
 = 3/2 * 3/7    No other number can divide, so we multiply out.
=9/14

That's the answer.
6 0
3 years ago
Read 2 more answers
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