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OpenStudy (anonymous):

a company makes 2 models of television. model A has a rectangular screen that measures 44cm by 32cm. model b has a larger screen with these measurments increased in the ratio 5:4. work out the measurments of the larger screen

OpenStudy (pfenn1):

Model A has w=32 cm and length 44 cm. We know that the measurements of model B to model A is 5:4. \[w_B=\frac54w_A=\frac5432\]\[l_B=\frac54 l_A=\frac54 44\]

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