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tangare [24]
2 years ago
5

On Monday, Takira counted 75 splatters of bird droppings on her car. On Tuesday afternoon, she counted 21 more. What is the perc

ent change in the number of bird droppings on Takira's car from Monday to Tuesday?
Mathematics
1 answer:
Law Incorporation [45]2 years ago
3 0

Answer:

28%

Step-by-step explanation:

percent change in the number of bird droppings = increase in splatters / splatters counted on Monday x 100

\frac{21}{75} x 100 = 28%

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There are 140 legs on a planet zids have 5 legs and zods have 7 legs h=how many soulutions are there
abruzzese [7]
Number of zids=x
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so
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try to get it into slope intercept from so you can graph is (y=mx+b)
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plug in numbers for x and get numbers for y (you can only plug in multiples of 7 for x so that there are a whole number of zids and since you are counting, x and y must never be negative)

lets try 0 for x

y=-5/7(0)+20
y=20
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lets try 7 for x
y=-5/7(7)+20
y=-5+20
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so x=7 and y=15 is an answer


lets try 14 for x

y=-5/7(14)+20
y=-10+20
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so x=14 and y=10 is another answer


lets try 21 for x
y=-5/7(21)+20
y=-15+20
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so x=21 and y=5 is another answer


lets try 28 for x
y=-5/7(28)-20
y=-20+20
y=0

so x=28 and y=0 is an answer (if there can be only one of a species)


if we go further, then y will be negative so the answers are

(x,y)
(0,20)
(7,15)
(14,10)
(21,5)
(28,0)

if it is allowed that only one species exists then there are 5 possible answers
if both must exist simultaneously, then there are only 3 answers
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