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3 years ago

A fish tank that holds 80 gallons of water is 55% full. How many gallons are

Mathematics

1 answer:

Amanda [17]3 years ago

5 0

<h2><u>Answer:</u></h2>

55% of the fish tank is <u>44 gallons.</u>

<h2><u>Step-by-step explanation:</u></h2>

To solve this, you turn the 55% into a decimal, by dividing it by 100.

55 ÷ 100 = 0.55

You then <u>multiply</u> the whole capacity (80) by 0.55

80 x 0.55 = <u>44 gallons</u>

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Tobeg says the equation 3x + 2y= 270 and y=4/5x + 20 intersect at the point (50,60) is this true how do you know

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ANSWER

Yes it is very true

<u>EXPLANATION</u>

If the two equations intersect at $(50,60)$ then this point must satisfy the two equations.

$3x+2y=270---(1)$

We substitute $(50,60)$ in to erquation (1)

$3(50)+2(60)=270$

$150+120=270$

$270=270$

$y=\frac{4}{5}x+20 ---(2)$

We now substitute $(50,60)$ in to erquation (2) also

$60=\frac{4}{5}(50)+20$

$60=40+20$

$60=60$

Since the point satisfy all the two equations, it is true that they intersect at $(60,50)$

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3 years ago

Nth sequence term question

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One example is when n is 11. 11^2 + 4 = 125. 11 is odd but the 11th term of the sequence, 125, is not prime because 125 is divisible by 5 and 25.

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3 years ago

The admission fee at a zoo is $2 for children and $4 for adults. If 1800 people enter the zoo and $6000 is collected, how many a

ipn [44]

Answer:

The number of adults is $1,200$

Step-by-step explanation:

Let

x------> the number of children

y------> the number of adults

we know that

$x+y=1800$ -------> equation A

$2x+4y=6000$ -------> equation B

Multiply equation A by $-2$

$-2(x+y)=-2*1800$ --------> $-2x-2y=-3600$ ------> equation C

Adds equation B and equation C

$2x+4y=6000\\-2x-2y=-3600\\---------\\4y-2y=6000-3600\\2y=2400\\y=2400/2\\y=1200$

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3 years ago

Read 2 more answers

What is the measure of the missing angle? 125 125° 03 O 13° O 42°

Dahasolnce [82]

Answer:

The correct answer is C. 13

Step-by-step explanation:

It is 13 because all triangles equal 180

so 125+42+13=180

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2 years ago