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Marianna [84]
4 years ago
10

2×1 1/2 -1 1/2×1 1/2

Mathematics
2 answers:
Ann [662]4 years ago
3 0

Answer:

3/4

Step-by-step explanation:

BlackZzzverrR [31]4 years ago
3 0

Answer:

3/4

Step-by-step explanation:

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The critical points of a rational inequality are x = –4 and x = 2. Which set of points can be tested to find a complete solution
katovenus [111]

Answer:

-2

Step-by-step explanation:

3 0
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How many plastic cubes can fit into the box?
netineya [11]

Option D:

160 plastic cubes can fit into the box.

Solution:

Convert mixed fraction into improper fraction.

Length of the box = 4 ft

Width of the box = 2\frac{1}{2}=\frac{5}{2} ft

Height of the box = 2 ft

Volume of the box = length × width × height

                                 $=4\times\frac{5}{2} \times2

                                 = 20 ft³

Volume of the box = 20 ft³

Length of the plastic cube = \frac{1}{2} ft

Volume of the cube = length × length × length

                                 $=\frac{1}{2} \times\frac{1}{2} \times\frac{1}{2}

                                 $=\frac{1}{8} \ \text{ft}^3

Volume of the cube = 0.125 ft³

$\text{Number of plastic cubes}=\frac{\text{Volume of box}}{\text{Volume of cube}}      

                                        $=\frac{20}{0.125}

                                        = 160

Number of plastic cubes = 160

Hence 160 plastic cubes can fit into the box.

Option D is the correct answer.

7 0
3 years ago
Three lighthouses on three nearby islands flash their lights every evening. On one island, the light flashes every 45 seconds. T
tiny-mole [99]

Lt1 = 45; Lt2 = 120; Lt3 = 75

:

Prime factor each:

45: 3,3,5,

120: 2,2,2,3,5

75: 3,5,5

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Lcm of all three: 2,2,2,3,3,5,5 Multiply this: 1800 secs they will all Flash

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1800/60 = 30 min: At 9:05Pm this should occur

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3 years ago
7z+8+2z+3 what's the answer this?
White raven [17]

Answer:

9z+11

Step-by-step explanation:

7z+8+2z+3

CLT, or combine like terms.

7z+2z=9z

8+3=11

So the simplified version is 9z+11.

-hope it helps

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3 years ago
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