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garri49 [273]
3 years ago
15

Solve for x: -1 < x + 3 < 5​

Mathematics
2 answers:
Wewaii [24]3 years ago
4 0

Answer:

x=1

Step-by-step explanation:

-1 < x + 3 < 5

-1 < 1 + 3 < 5

-1 < 4 < 5

4 is greater than -1, but less than 5.

Rus_ich [418]3 years ago
3 0

Answer:

−4<x<2

Step-by-step explanation:

−1<x+3<5

−1+−3<x+3+−3<5+−3  (Add -3 to all parts)

−4<x<2

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Step-by-step explanation: to evaluate an expression for these variables, plug in those numbers for the variables.

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2 years ago
One cubic meter of water weighs approximately 2200 pounds. There are 100 cm in one meter. If you have a box-shaped fish tank tha
Diano4ka-milaya [45]

Answer:

158.4 pounds

Step-by-step explanation:

first find the volume of the tank

V = 30 \times 30 \times 80

V = 72000 cm^3

to convert this to m^3 we know that 1m = 100cm

V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}}{100\,\text{cm}}\right)^3

V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}^3}{100^3\,\text{cm}^3}\right)

the cm^3 cancel out.

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by simply converting the side-lengths to meters beforehand can give you this answer directly:

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it is given that 1 meter cube of water weighs about 2200 pounds.

1\,m^3 = 2200 \,\text{lb}

multiply both sides with 0.072 to find our answer:

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0.072\,m^3 = 158.4 \,\text{lb}

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