sablanisaiah1324 sablanisaiah1324

30-09-2019
Mathematics

contestada

Mark earned $240 in the first week and earns $680 in the fifth week. How much will he earn in the 20th week (suppose his earnings each week have the same increase)

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devishri1977 devishri1977

30-09-2019

Answer:

$ 2330

Step-by-step explanation:

a = $240

Earning at the end of fifth week = $ 680

increase in earnings per weak = ( 680 -240)/2 = 440/2 =110

d =110

l = a + (n-1)d

a20 = 240 + (19 * 110 ) = 240 + 2090 = 2330

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oneishahughes5 oneishahughes5

30-09-2019

Answer:2334

Step-by-step explanation:

Answer Link

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