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Leona [35]
3 years ago
7

A rectangular fish tank is 2m long, 1m wide and 1m deep. How many litres of water will it hold?

Mathematics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

2000 litres

Step-by-step explanation:

find the volume

v =2m×1m×1 m

= 2 m3

1m3 =1000litres

2m3=????

<em>cross</em><em> </em><em>multiply</em><em> </em><u> </u><u> </u><u> </u>

<u>2m3</u><u> </u><u>×</u><u>1000litres</u>

<u> </u><u> </u><u> </u><u> </u><u>1m3</u>

<u>Ans</u><u> </u><u>=</u><u> </u><u>2000litres</u><u> </u>

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Read 2 more answers
Y=x+1<br> y=x^2-1<br><br> please help i don't understand
ololo11 [35]

ANSWER

The solution is

(x=1,y=2),(x=2,y=3)


<u>EXPLANATION</u>

We have

y=x+1---(1)

and


y=x^2-1---(2)


Let us substitute equation (1) in to equation (2). This gives us,

x+1=x^2-1(2)

We rewrite this as a quadratic equation as the highest degree is 2.

x^2-x-1-1=0

This implies that


x^2-x-2=0


we factor to obtain,


x^2+x-2x-2=0


x(x-1)-2(x-1)=0


(x-1)(x-2)=0


This means,

(x-1)=0\:\: or\:\:(x-2)=0

x=1\:\: or\:\:x=2


We substitute this values into any of the above equations, preferably equation (1)


When, x=1, y=1+1=2


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The solution is

(1,2),(2,3)


8 0
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