Show all work will mark brainliest and give u 40 points

Step-by-step explanation:

Make 8 into a fraction so both k/6 and 8 can be added so it will be 8/1 multiply denominator and munerator by 6 Inorder that denominators of both numbers we are adding is the same (k/6+48/6)since denominators are same it can be considered as one unit thus (k+48/6)move the six to the other side of the equation Inorder that division becomes inverse (multiplication) (6*5=30)

In equation form:k+48=30 move the forty eight to the other side Inorder that plus forty eight becomes negative forty eight k=30-48 therefore k=-18

the real answer is prolly the first anser have a good dayy

Step-by-step explanation:

this is answer of 144 cubic meters

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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