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Eduardwww [97]
3 years ago
12

Jerry thinks that x < 4 is a solution to the following inequality: 2x + 10 < 4x - 20

Mathematics
1 answer:
I am Lyosha [343]3 years ago
7 0

Answer:

x>15

Step-by-step explanation:

Given the inequality: 2x + 10 < 4x - 20

Collect like terms

2x-4x<-20-10

-2x<-30

x > -30/-2

x>15

Hence the solution is x>15

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Step-by-step explanation:

90 = 18·5

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The greatest common factor of these numbers is 18.

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<em>Comment on the GCF</em>

It can be useful to know Euclid's algorithm for finding the GCF:

  1. Determine the remainder from dividing the larger number by the smaller.
  2. If the remainder is zero, the smaller number is the GCF. If the remainder is non-zero, use it to replace the larger number and repeat from step 1.

For example, 126 mod 90 = 36; 90 mod 36 = 18; 36 mod 18 = 0, so 18 is the GCF of 126 and 90. (The modulo function 'mod' returns the remainder from division.)

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A shirt cost £5 while the hat cost £2.

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