Answer:
The answer is D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Answer:
The depth now is 47 feet below the surface of the lake
Step-by-step explanation:
Step 1: Determine initial depth
Initial depth=surface level-depth below surface
where;
Surface level=0, since its the point of reference
depth below surface=96 feet
replacing;
Initial depth=(0-96)=-96 feet
Step 2: Final depth
Final depth=Initial depth+distance covered
where;
Initial depth=-96 feet
distance covered=+49 feet since the scuba driver moves towards the surface
replacing;
distance covered=-96+49=-47 feet
The depth now is 47 feet below the surface of the lake
Let's say the numbers are "a" and "b"
hmm say "a" is the smaller, and "b" the greater
so "b" is "4 more than 5 times" "a"
so... 5 times "a" is 5*a or 5a
4 more than "that", will be "that" + 4
or
5a + 4
so.. whatever "a" is, "b" is 5a+4
now, their sum is 22, as opposed to "zz" hehe
so
![\bf \begin{cases} a+b=22\\ --------------\\ \boxed{b}=5a+4\qquad thus\\ --------------\\ a+\boxed{5a+4}=22 \end{cases}](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Bcases%7D%0Aa%2Bb%3D22%5C%5C%0A--------------%5C%5C%0A%5Cboxed%7Bb%7D%3D5a%2B4%5Cqquad%20thus%5C%5C%0A--------------%5C%5C%0Aa%2B%5Cboxed%7B5a%2B4%7D%3D22%0A%5Cend%7Bcases%7D)
solve for "a", to see what the smaller one is
what's "b"? well, b = 5a + 4