Amedium orange has 60 calories and a grapefruit has 80 calories. a citrus gift package contains a total of 12 oranges and grapefruit. the number of calories in the gift package is 780. how many oranges are in the package?

For this case we propose a system of equations:

x: Variable representing the amount of oranges

y: Variable that represents the amount of grapefruit

We have to meet a citrus gift package:

From the second equation we have to:

We replace in the first:

Thus, the package has 3 grapefruits.

On the other hand:

Thus, the package has 9 oranges.

9 oranges

i need a picure

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %