# math

marla earned \$400.00 interest over 2 years on a \$4000.00 investment. jovita earned \$960.00 interest over 4 yars on her \$ 6000.00 investment. Who had the higher rate of interest?

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1. I = prt

Maria:
400 = 4000 * r * 2

Jovita:
960 = 6000 * r * 4

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2. 600=4000*r*2

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3. if \$4000 invrsted at simple interest for two yrars earn #600 than rate of interest must be

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