anonymous
  • anonymous
HELP WITH ACT MATH REVIEW QUESTION IMPORTANT: the depth of a pond is 180 cm and is being reduced by 1 cm per week. the depth of a second pond is 160 cm and is being reduced by 1/2 cm per week. If the depths of both ponds continue to be reduced at these constant rates, in about how many weeks will the ponds have the same depth?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@Vocaloid @mathstudent55 @Nnesha @BAdhi @mathmate @LexiLuvv2431 @lily1021 @RiOT @geny55 @emogirl100 @Elizabeth_46 @flatouthero @LegendaryNikki @Princessroniya
anonymous
  • anonymous
Yo
Vocaloid
  • Vocaloid
write equations for both ponds depths pond 1: d = 180-x pond 2: d= 160-(0.5x) where x = number of weeks and d = depth set them equal to each other and solve for x 180-x = 160-(0.5x)

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anonymous
  • anonymous
@Vocaloid why? if i don't no one helps me with my problem
Vocaloid
  • Vocaloid
tagging = okay tagging a ton of people at a time = generally not ok
anonymous
  • anonymous
but why? just curious
Vocaloid
  • Vocaloid
everyone who gets tagged gets a bunch of notifications
anonymous
  • anonymous
okay sorry
Vocaloid
  • Vocaloid
anyway, back to the problem...
anonymous
  • anonymous
also could you help me try to actually solve for x please?
Vocaloid
  • Vocaloid
180-x = 160-(0.5x) start by adding x to both sides
anonymous
  • anonymous
so would i get 180-.5x=160
Vocaloid
  • Vocaloid
yes, keep going now subtract 180 from both sides
anonymous
  • anonymous
I'm just wondering i thought i would add 180 plus 160
Vocaloid
  • Vocaloid
nope, they're not on the same side of the equal sign so we subtract 180 - 0.5x = 160 subtract 180 from both sides, what do you get?
anonymous
  • anonymous
-.5x=-20
Vocaloid
  • Vocaloid
right, now we divide both sides by (-0.5)
anonymous
  • anonymous
its 40! thank you so much for the help :-)

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