3 years ago

Is this true or no plz help

Mathematics

1 answer:

il63 [147K]3 years ago

7 0

Im pretty sure its No.

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Solve this equation. Does this equation have one solution, no solution, or infinitely many solution. use the drop down menus to

WINSTONCH [101]

Answer: no solution

Step-by-step explanation:

24x + 72 = 24x +12

-24x -24x

———————————

72=12

72 doesn’t equal 12 so the answer is no solution

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4 years ago

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18 POINTS! At the AoPS office, mice vary inversely with cats, that is, mice=k/cats, for some value of k. When there are 3r-19 ca

Blizzard [7]

Answer:

k=30

Step-by-step explanation:

The number of mice vary inversely with cats. This is written as:

$Mice \propto \dfrac{1}{Cat} \\Mice = \dfrac{k}{Cat}$

When there are 3r-19 cats, there are 2r+1 mice

$2r+1 = \dfrac{k}{3r-19}\\$Cross multiply$\\k=(3r-19)(2r+1)$

When there are 6r-27 mice, there are r-5 cats.

$6r-27 = \dfrac{k}{r-5}\\$Cross multiply$\\k=(6r-27)(r-5)$

Taking the values of k above, we have:

$k=(3r-19)(2r+1) =(6r-27)(r-5)\\(3r-19)(2r+1) =(6r-27)(r-5)\\6r^2+3r-38r-19=6r^2-30r-27r+135\\$Collect like terms\\6r^2-6r^2+3r+30r-38r+27r-19-135=0\\22r-154=0\\22r=154\\$Divide both sides by 22\\r=7$

Therefore:

$k=(3r-19)(2r+1) \\=(3*7-19)(2*7+1)\\=(21-19)(14+1)\\=2*15\\k=30$

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3 years ago

Miller Park sits on one square city block 300ft on each side. The city wants to get an estimate of how much it would cost to put

harkovskaia [24]

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424.264*25=10606.6.

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4 years ago

Subtract decimal N-8.12=11.52

Sever21 [200]

I Think it is 19.64 ok

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4 years ago

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Which pair shows equivalent expressions?

nlexa [21]

Answer:

Step-by-step explanation:

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3 years ago

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