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saul85 [17]
3 years ago
12

(0- -3)×(-1+5)÷(2-1)

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

Answer:

12

Step-by-step explanation:

#STAYSAVAGE

#MANTENHA-SE ECONÔMICO

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The amount of water inside each of these things is proportional to the volume of the tank the tropical fish tank has a volume of
k0ka [10]

Answer:

1920 gallons of water

Step-by-step explanation:

From the question; the amount of water is proportional to volume of the tank

i.e amount of water = volume of the tank

in a tropical fish;

3000 gallons of water = 12.5 m³     ----- Equation (1)

However, in the  measurement of  shark tank, we have

length = 20cm = 0.2 meters

width = 4 meters

Height = 10 meters

How many gallons of water can the shark tank hold?

From the measurement of  shark tank, we can calculate the volume;

The volume of the tank = Length × width × height

Volume of the tank = 0.2 × 4 × 10 = 8 m³

since, the amount of water is proportional to volume of the tank

y ( Gallons of water ) = 8 m³    -------- Equation (2)

Equating equation 1 and 2; we have:

3000 gallons of water = 12.5 m³  

y ( Gallons of water ) = 8 m³    

y ( Gallons of water ) ×  12.5 m³  = 3000 gallons of water × 8 m³  

y ( Gallons of water )  = \frac{3000 gallons of water * 8 m^3  }{12.5m^3}

y ( Gallons of water )  = \frac{24000}{12.5}

y ( Gallons of water )  = 1920 gallons of water

Thus, the shark tank can hold 1920 gallons of water

6 0
4 years ago
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Find x in this proportion.<br> 5/2x =25/4 <br> x =<br><br> 2/5<br> 5/2<br> 4/5<br> 8/5
Ymorist [56]

Answer:

2/5

Step-by-step explanation:

make it reciprocal

2x/5 = 4/25

cross multiply the numbers

2x × 25 = 4×5

2x= 20/25

2x= 4/5

x = 2/5

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Answer:

7.50x = 60

x = 8

Step-by-step explanation:

He would have to work 8 hours because 8*7.50=60

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Zina [86]

Answer:

I believe its 57.

Step-by-step explanation:

180-66=57.

57+57+66=180

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3 years ago
Choose the correct correspondence of line cd
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Answer:

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