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thawngmawi
25.02.2021 •
Mathematics
(PLZ ANSWER)A book and a magazine cost $9.00. If a book costs $3 more than a magazine, what is the cost of each?Let b = cost of a book and m = cost of a magazine. (answer choices)vv
m = $3 and b = $6
m = $4 and b = $5
m = $1 and b = $8
m = $6 and b = $3
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Ответ:
The answer would be a bcause if you subtract 3 from the answer and divide it by 2 you get three and then you have 6 dollars for the book=m = $3 and b = $6
can i get brainliest for answering early
Ответ:
m = $3 and b = $6
Step-by-step explanation:
Total cost = $9
Since the cost of the magazines is m, therefore, the cost of the books is ($3+m)
==> $3 + m + m = $9
==> $3 + 2m = $9
Subtract $3 from both sides of the equation
==> $3 - $3 + 2m = $9 - $3
==> 2m = $6
Divide both sides by the coefficient of m which is 2
==> 2m/2 = $6/2
==> m = $3
Since m = $3, therefore the cost of books, b =
$3 + $3
= $6
Therefore, m = $3 and b = $6
Hope this helps!!!
Ответ:
10
Step-by-step explanation:
Substitute the value of the variable into the equation and simplify.