Question

As discussed on Thursday's show, 80 percent of what part of the Earth has never been mapped in detail, though some scientists are using virtual reality to give more people a view of it?

Answer 1

Explanation:

let a = money that ann gets.

let b = money that brian gets.

let c = money that carol gets.

you get a + b + c = 400

you are given that:

a = 2b

b = 3c

since a = 2b and b = 3c, this means that a = 2 * 3c = 6c

you get:

a = 6c

b = 3c

c = c

replace a and b with their equivalents in the equation of a + b + c = 400.

you get 6c + 3c + c = 400

combine like terms to get 10c = 400

solve for c to get c = 40

since b = 3c, this means that b = 120.

since a = 2b, this means that a = 240.

you have:

a = 240

b = 120

c = 40

a + b + c = 240 + 120 + 40 which is equal to 400

Answer 2

As discussed on Thursday's show, 80 percent of what part of the Earth has never been mapped in detail, though some scientists are using virtual reality to give more people a view of it?