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quester [9]
2 years ago
9

Lura’s chocolate bar is 71% cacoa. If the weight of the chocolate bar is 58 grams, how many grams of cocoa does it contain? Roun

d your answer to the neares
tenth
Mathematics
1 answer:
gtnhenbr [62]2 years ago
4 0
58*0.71= around 41.2 grams of coco. This is because we can multiply to get this.

Please like and brainiest if correct!
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A painter charges an initial fee of $50 and $30 for each hour of labor. Write a linear function to determine the total cost. How
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The initial fee of $50 is essentially the y intercept because this is the value when x = 0 (x is the number of labor-hours). So b = 50.

The slope is m = 30 because each increase of 1 hour leads to the cost bumping up by 30 dollars. In other words, slope = rise/run = (change in cost)/(change in hours) = 30/1

So we plug m = 30 and b = 50 into the y = mx+b formula to get y = 30x+50

Replace y with f(x) to get f(x) = 30x+50

The linear function for the cost is f(x) = 30x+50

Note: Some books may use other letters (instead of x and f(x)), but the idea is still the same

Once you know the cost function, you replace x with 4.5 to find the amount it will cost to have a painter work for 4.5 hours.

f(x) = 30x+50
f(4.5) = 30*4.5+50
f(4.5) = 135+50
f(4.5) = 185

It will cost 185 dollars to have the painter work for 4.5 hours
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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