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Fed [463]
1 year ago
10

I Need some help on this assignment Also the second half to the problem how much will be spent on the job from the 10 to 20th da

y

Mathematics
1 answer:
Alona [7]1 year ago
8 0

Explanation

f(x)=4.1x+1.9

where x is the number of days since the start of the job

and f(x) is the rate of change

Step 1

a)find the total expenditure if the job takes 12 days

so, as x represents the number of days, just replace and calculate

let x= 12

\begin{gathered} f(x)=4.1x+1.9 \\ f(12)=4.1(12)+1.9 \\ f(12)=49.2+1.9 \\ f(12)=51.1 \end{gathered}

so

a) 51.1

Step 2

now, let's find the total spent on the job from the 10 to 20th day

a) find the x value ( number of days since the job started)

x= 20 days-10dys= 10

so

x= 10

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