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On vacation, Jose went deep sea diving. Hestarted a 3 feet above sea level. And he dove down 15 feet. What integer represents how far below sea level Jose was when he dove down?
a. -18
c. 12
b. -12
d. 18

$7$ . On vacation, Jose went deep sea diving. Hestarted a $3$ feet above sea level. And he dove down $15$ feet. What integer represents how far below sea level Jose was when he dove down? $\newline$ a. $-18$ $\newline$ c. $12$ $\newline$ b. $-12$ $\newline$ d. $18$

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Understanding integers

Full solution

Q.

7

. On vacation, Jose went deep sea diving. Hestarted a

3

feet above sea level. And he dove down

15

feet. What integer represents how far below sea level Jose was when he dove down?

\newline

a.

-18

\newline

c.

12

\newline

b.

-12

\newline

d.

18

Start with + $3$ : Jose starts $3$ feet above sea level, so we start with $+3$ . Then he dives down $15$ feet, which means we subtract $15$ from $3$ . So, the calculation is $3 - 15$ .
Subtract $15$ feet: Now, let's do the math: $3 - 15$ equals $-12$ . $\newline$ So, Jose is $12$ feet below sea level.

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