Solve Graphically $15 \mathrm { ft } ^ { 3 }$

question 34

Multiple Choice

Solve graphically. In a concrete mix, there is four times as much gravel as concrete. The total volume is $15 \mathrm { ft } ^ { 3 }$ . How much of each is in the mix if
X = the amount of concrete
Y = the amount of gravel
The equations are $\begin{array} { l } y = 4 x \\x + y = 15\end{array}$

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Definitions:

Digestive Tract

The series of organs in the body through which food passes, nutrients are absorbed, and waste is eliminated.

Muscle Tissue

A tissue composed of fibers capable of contracting to effect bodily movement.

Epithelial

Pertaining to the epithelium, a layer of cells covering the body surfaces or lining cavities.

Reticular Connective Tissue

A type of connective tissue that contains a network of reticular fibers, supporting the framework of organs like the spleen and lymph nodes.