The difference in elevation of a helicopter and a submarine is 18 1/2 meters. The elevation of the submarine is -7 3/4. Write and solve an equation to find the elevation h (in meters) of the helicopter. An equation is ___ = 18 1/2

The elevation of the helicopter is meters.

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

hello,

as   long as they add up to 180 its correct.

step-by-step explanation:

which statement is true about the local minimum of the graphed function?

over the interval [–4, –2], the local minimum is 0.

over the interval [–2, –1], the local minimum is 25.

over the interval [–1, 4], the local minimum is 0.

over the interval [4, 7], the local minimum is -7.