SOLUTION: At a bakery there are 45 different kinds of breads and sweets. If the ratio of sweets to breads is 4:5, how many types of breads are there?

Question 931221: At a bakery there are 45 different kinds of breads and sweets. If the ratio of sweets to breads is 4:5, how many types of breads are there?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = breads
y = sweets
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x + y = 45
y/x = 4/5
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x + y = 45
y = (4/5)x
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put the system of linear equations into standard form
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x + y = 45
(4/5)x - y = 0
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x + y = 45
0.8x - y = 0
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = breads = 25
y = sweets = 20
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Solve and graph linear equations:
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Solve quadratic equations, quadratic formula:
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Solve systems of linear equations up to 6-equations 6-variables:
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