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3 years ago

What is the equation of the line in slope intercept form?

Mathematics

1 answer:

hichkok12 [17]3 years ago

6 0

Answer:

y=1/7x

Step-by-step explanation:

The y-intercept is 0, so we can just ignore that, and the slope would be 1/7, because it goes 7 units of x to the right for each y value.

Slope intercept form: y=mx+b

b is the y-intercept

m is the slope

Hope this helps

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3 years ago

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Step-by-step explanation:

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3 years ago

A store sells Brazilian coffee for $10 per lb. and Columbian coffee for $14 per lb. If the store decides to make a 150-lb. blend

Artemon [7]

Answer:

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

Step-by-step explanation:

Let "b" be the amount of Brazilian coffee, in pounds, required for the blend and "c" the amount of Colombian coffee required, in pounds.

Since there are two unknown variables a two-equation system is needed to solve the problem, we can set up one equation for weight and another for price as follows:

$b+c=150\\10*b+14*c=11*150$

Solve for "c" by multiplying the first equation by -10 and adding it to the second one:

$b+c=150\\10b+14c -10b-10c=11*150 -(10*150)\\4c=150\\c = 37.5$

Now, solve for b by replacing the value obtained into the first equation

$b+c=150\\b= 150 - 37.5\\b=112.5$

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

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2 years ago