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rosijanka [135]
3 years ago
6

How do I work this out I need full answer im lost​

Mathematics
1 answer:
taurus [48]3 years ago
7 0

Answer:

7x = 35cm ; 2x = 10cm

Step-by-step explanation:

7x and 2x are the lengths

7x+2x=45

Then you take 7 + 2 = 9

so is gonna be 9x = 45

then you divide both side with 9

so is gonna be x = 5

Then you take 5 multiply 7 : 2

so 7 x 5 = 35cm

2 x 5 = 10cm

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Alexandra [31]

Answer:

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Step-by-step explanation:

Y=-2x + 20.......eq(i)

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Now, putting y= - 2x +20 in eq (ii)

6x - 5(-2x + 20)=12

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X=112 /16

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Y=-2*7 +20

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2 years ago
A professor records the difference between the marks scored by the students in the class test last week and those scored in the
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12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)

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ehidna [41]

Answer:

80

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80 * 20% = 16

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3 years ago
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