Can someone help me pls ASAP.. it’s a math question

9514 1404 393

Step-by-step explanation:

1. Let y represent gallons in the tank, and x represent number of weeks.

tank 1

  y = 256 -3x . . . . . starts with 256 gallons, loses 3 per week

tank 2

  y = 384 -5x . . . . . starts with 384 gallons, loses 5 per week

The amounts in the tanks will be equal when the y-values are equal.

  y = y

  256 -3x = 384 -5x

  2x = 128 . . . . add 5x-256

  x = 64 . . . . . . divide by 2

The amount of water in the two tanks will be equal after 64 weeks.

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2. Let s and f represent the total cost of membership at Silver Gym and Fit Factor, respectively. Let x represent the number of months of membership.

  s = 25 +30x

  f = 65 +20x

The costs are the same when s=f.

  s = f

  25 +30x = 65 +20x

  10x = 40 . . . . . . subtract 25 +20x

  x = 4 . . . . . . . . . divide by 10

The two memberships will be the same price after 4 months.

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.