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P=14.7+(f)/( 22.5)
The total pressure,
P, in pounds per square inch,
f feet below the ocean's surface is given by the equation. What is the pressure at the ocean's surface in pounds per square inch?
Choose 1 answer:
(A) 0
(B) 14.7
(C) 22.5
(D) 331

$P=14.7+\frac{f}{22.5}$ $\newline$ The total pressure, $P$ , in pounds per square inch, $f$ feet below the ocean's surface is given by the equation. What is the pressure at the ocean's surface in pounds per square inch? $\newline$ Choose $1$ answer: $\newline$ (A) $0$ $\newline$ (B) $14$ . $7$ $\newline$ (C) $22$ . $5$ $\newline$ (D) $331$

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Write a linear function: word problems

Full solution

Q.

P=14.7+\frac{f}{22.5}

\newline

The total pressure,

P

, in pounds per square inch,

f

feet below the ocean's surface is given by the equation. What is the pressure at the ocean's surface in pounds per square inch?

\newline

Choose

1

answer:

\newline

(A)

0

\newline

(B)

14

.

7

\newline

(C)

22

.

5

\newline

(D)

331

Understand Equation: Understand the given equation. $\newline$ The equation $P = 14.7 + (f / 22.5)$ represents the total pressure $P$ in pounds per square inch at $f$ feet below the ocean's surface. To find the pressure at the ocean's surface, we need to consider the depth $f$ to be $0$ , since the surface is the starting point where depth is measured from.
Substitute Value: Substitute the value of $f$ as $0$ into the equation. $\newline$ If we are at the ocean's surface, then $f = 0$ feet. We substitute this value into the equation to find the pressure at the surface. $\newline$ $P = 14.7 + (0 / 22.5)$
Perform Calculation: Perform the calculation with the substituted value. $\newline$ Since any number divided by another number is $0$ , the second term of the equation becomes $0$ . $\newline$ $P = 14.7 + 0$ $\newline$ $P = 14.7$
Conclude Final Answer: Conclude the final answer. $\newline$ The pressure at the ocean's surface is $14.7$ pounds per square inch. This corresponds to answer choice $(B)$ .

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