I need helppp plsss!!! Russell wants to buy hamburgers and fries for his friends, and he has $57.16 that he can spend. Each hamburger costs $3.29 including tax, and one order of fries costs $1.36 including tax. If Russell plans to purchase 12 hamburgers, which inequality could be used to find f, the number of orders of fries that Russell can purchase?
A.
$3.29 + $1.36f < $57.16

B.
12($3.29) + $1.36f > $57.16

C.
$3.29 + $1.36f > $57.16

D.
12($3.29) + $1.36f < $57.16

D. 12(3.29) + 1.36f < 57.16

Step-by-step explanation:

The variable f represents the number of fries Russell can purchase.

We already know he wants to purchase 12 hamburgers, and that hamburgers cost 3.29 each.

This means that the combined cost of all the hamburgers will be 12(3.29).

We also know fries cost 1.36 for every order. This means that Russell can spend 1.36f on fries with his budget 57.16.

This makes our inequality:

12(3.29) + 1.36f < 57.16

Keep in mind Russell has a constraint of having a budget of $57.16. This makes it odd for the solutions to the problem since this means it can also be equal to 57.16, but let's ignore that for now since there are no other solutions that include this detail. Russell must spend less than his budget of $57.16 in order to be able to buy what he wants. So the combined cost of the burgers and fries will be less than his budget of $57.16, not more than.

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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