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kow [346]
3 years ago
5

What is the final elevation if a whale starts at -9m and changes 11m?

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
5 0

Answer:

20m

Step-by-step explanation:

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PLZ HELP QUICK Factor the GCF: 12a3b + 8a2b2 − 20ab3. (5 points)
antoniya [11.8K]

Answer:

4ab(3a² + 2ab − 5b²)

Step-by-step explanation:

simply factorize

3 0
4 years ago
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It costs dylan $x$ dollars to buy $3$ tickets to the zoo. he discovers that if he were to buy $5$ tickets, he would receive a to
jonny [76]

So, if Dylan has x dollars and he bought 3 tickets with them, the tickets were priced at k dollars per ticket. If he bought 5 tickets with the x dollars and saved 12 total dollars, it would be the same as buying the tickets with x-12 dollars, so we have:

\frac{x}{3}=k\\ \frac{x-12}{5}=q

So, with this we have:

x=3k\\ x=5q+12

If we're looking for a number that satisfies these constraints, we can work with modular arithmetic. We have:

x\equiv 0 \pmod{3}\\ x\equiv 12 \pmod{5}

So, we can use the chinese remainder theorem here. So, we clearly have x=3k, which means:

3k\equiv12 \pmod{5} \implies\\ k \equiv 4 \pmod{5} \implies\\ k=5j+4

So, since we have x=3k, we also have x=3(5j+4)=15j+12.

So, clearly j=0 won't work so we should have j=1. That means our money per ticket for the five tickets is:

\frac{27-12}{5}=3

And our money per three tickets is:

\frac{27}{3}=9

This is easily verifiable. Three tickets needs 27 dollars and 5 tickets needs 15 dollars, which is 12 less than 27 dollars. So we have our money per three dollar ticket at 6 more than money per five dollar.

4 0
3 years ago
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C-0.2c<br> Which other expression could Kelly use to calculate her cost before sales tax?
goldenfox [79]

Answer:

C - (C/100x20)

Step-by-step explanation:

Cost minus the tax

the tax is 20 percent therefore cost divided by 100 times 20

4 0
4 years ago
a rectangular garden has a length which is 14 feet longer than 4 times its width. its area is 60 find length and width. Pls help
gogolik [260]

Answer:

56

Step-by-step explanation:

8 0
3 years ago
Clara visits the aquarium while on vacation.the aquarium is 2and1/2 miles from her hotel.she walks 1/4 mile to bus stop, takes t
lina2011 [118]
Since it takes her 2 1/2 miles to get to the aquarium from her hotel, you need to subtract the various distances from  this value in order to find how long it took Clara to walk the rest of the way to the aquarium. 

2 1/2 - (1/4+1 3/4)= 2 1/2 - 2= 1/2

Clara must walk 1/2 a mile to get the rest of the way to the aquarium.
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3 years ago
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