NEED HELP ALGEBRA 2 URGENT Which of the following equations could represent the amount of water (y) in an open tank that is left out in the sun to slowly evaporate for several days (x)? y=-0.21x+10 y=0.42x+8 y=-0.21x-10 y=2x+5 y=3x-2

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

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step-by-step explanation: