Ollivander sells sheets of aluminum in a variety of thicknesses: 1.0 mm at 0.55 $/cm2, 2.0 mm at 0.70 $/cm2, and 3.0 mm at 0.85 $/cm2 and various thicknesses in between all following the same linear trend. Harry needs 10.0 cm2 of 2.2 mm thick aluminum. How much does this cost him? Express your answer in Dollars.

Respuesta :

Answer:

10cm2= $331.81

Explanation:

Giving the following information:

2.0 mm at 0.70 $/cm2

3.0 mm at 0.85 $/cm2

0.1mm= 0.15/10= $0.015

We need 2.2mm thick:

2.2mm= 0.70 + 0.015*2= $0.73

AND 10cm2:

1cm= 10mm

10cm= 100mm

10cm2= 1000mm

1000mm/2.2= 454.54*0.73= $331.81

10cm2= $331.81

The linear trend is defined as a consistent decrease or increase in the variables over time. The model analyzes past data and forecasts future growth or patterns.

It cost him amounting to $331.81

Step-by-step Computation

[tex]\text{2.0 mm at 0.70} /\text{cm}^{2} \\\text{3.0 mm at 0.85} $/\text{cm}^{2}} \tex{0.1mm}= 0.15/10\\\text{0.1mm}= $0.015\\We need 2.2mm thick:\\\text{2.2mm= 0.70 + 0.015} \text{ x } 2\\\text{2.2mm}= $0.73\\\\\text{Computation for 10 cm}^{2} 1cm= 10mm\\10cm= 100mm\\10cm^{2}= 1000mm\\1000mm/2.2= 454.54 \text{ x }0.73= $331.81\\\\10cm^2= $331.81[/tex]

For more information about related sums, refer below

https://brainly.com/question/10902215

Q&A Education