Last summer, Betty earned $4200 by painting houses. She invested

some of the money in a savings account that paid 3.5%/year and the

rest in a government bond that paid 4.5%/year. After one year, she has

earned $174 in interest. How much did she invest at each rate?

Question

Mathematics

Gauge

26 July, 19:57

Last summer, Betty earned $4200 by painting houses. She invested

some of the money in a savings account that paid 3.5%/year and the

rest in a government bond that paid 4.5%/year. After one year, she has

earned $174 in interest. How much did she invest at each rate?

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Answers (1)

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Jamya Chung · Answer 1

x * (1.035) + (4,200-x) * (1.045) = 4,374.00

1.035x + 4,389.00 - 1.045x = 4,374.00

15.00 =.01x

x = 1,500 so x (1,500) invested at 3.5% and

(4,200 - 1,500) (or 2,700) invested at 4.5%

Last summer, Betty earned $4200 by painting houses. She investedsome of the money in a savings account that paid 3.5%/year and therest in a government bond that paid 4.5%/year. After one year, she hasearned $174 in interest. How much did she invest at each rate?

Last summer, Betty earned $4200 by painting houses. She invested

some of the money in a savings account that paid 3.5%/year and the

rest in a government bond that paid 4.5%/year. After one year, she has

earned $174 in interest. How much did she invest at each rate?