Wilma and Fernando went to the Farmer's Market on Saturday. Wilma bought 3 apples and 6 oranges for $9. Fernando bought 6 apples and 2 oranges for $7. What was the cost of 1 orange?

Enter numbers, decimals and - signs as needed, do not enter any other symbols or spaces)

The cost of 1 orange y = 1.1

Step-by-step explanation:

Let cost of 1 apple = x

Cost of 1 orange = y

We will make equations from given statements to find the cost of 1 orange i.e y

Wilma bought 3 apples and 6 oranges for $9: Mathematical expression will be:

Fernando bought 6 apples and 2 oranges for $7. Mathematical expression will be:

Let:

Multiply eq(1) by 2 and subtract both equations.

So, We get value of y=1.1

Now, put value of y in eq(1) to find value of x

So, the cost of 1 orange y = 1.1

linearly: 8560 bacteria

exponentially: approximately 75233 bacteria

step-by-step explanation:

assuming it is not exponential (we would have some really complicated logarithms), let's say it is linear. then, after 5 hours, it increased by 1200 bacteria, so every hour it increases by 240 bacteria. this means that after 19 hours, we get 19 * 240 + 4000 bacteria or 3800 + 760 + 4000 = 7800 + 760 = 8560 bacteria.

because it says round your answer, i will do this exponentially (with a calculator, of course). first, we need to find how much it multiplies by every hour, by taking the 5th root of 52/40 or 13/10. this is approximately 0.167. we still need to add 1 to this, because we are multiplying by that number, not adding that amount of the number. now, we just calculate 4000 * (1.167)^19. use a calculator to get approximately 75232.6, or 75233.

sorry man i accidentally pressed yes my bad

step-by-step explanation: