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Anarel [89]
3 years ago
14

The cost of manufacturing x T-shirts is modeled by the function T(x)=5x+12and the cost of manufacturing x sweatshirts is modeled

by S(x)=15x+18. What is a function giving the total cost of manufacturing T-shirts and sweatshirts? Find the total cost of manufacturing 15 T-shirts and 15 sweatshirts.
Mathematics
1 answer:
NISA [10]3 years ago
8 0
87 for t-shirts and 243 for sweatshirts, the total cost is 330
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A sneaker company can make 50 pairs of sneakers for every 6 yards of material. Make a table to show the relation between materia
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A sneaker company can make 50 pairs of sneakers for every 6 yards of material.

Then in each case you can consider proportion.

1. 50 pairs -- 6 yards,

80 pairs -- x yards.

Mathematically,

\dfrac{50}{80}=\dfrac{6}{x},\\ \\x=\dfrac{80\cdot 6}{50}=9.6\ yards.

2. 50 pairs -- 6 yards,

100 pairs -- x yards.

Mathematically,

\dfrac{50}{100}=\dfrac{6}{x},\\ \\x=\dfrac{100\cdot 6}{50}=12\ yards.

3. 50 pairs -- 6 yards,

120 pairs -- x yards.

Mathematically,

\dfrac{50}{120}=\dfrac{6}{x},\\ \\x=\dfrac{120\cdot 6}{50}=14.4\ yards.

4. 50 pairs -- 6 yards,

140 pairs -- x yards.

Mathematically,

\dfrac{50}{140}=\dfrac{6}{x},\\ \\x=\dfrac{140\cdot 6}{50}=16.8\ yards.

Thus, the table is

\begin{array}{cc}\text{Pairs}&\text{Yards}\\50&6\\80&9.6\\100&12\\120&14.4\\140&16.8\end{array}

The domain of the relation is the set \{50,80,100,120,140\} and the range of the relation is \{6,9.6,12,14.4,16.8\}.See attached diagram for the graph of the relation.

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5.6+8.5 divided by 2 times 6 = 42.3

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