April 17, 2014

Homework Help: 12th grade MATH

Posted by Blue on Monday, October 7, 2013 at 9:04pm.

1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame

(8+2x)(12+2x)-96 = 96

is it correct that the answer is 12? i'm not confident with my answer,please help!

Arman has 1160 annual income from bonds bearing 3% and 5 % interest. then he added 25% more of the 3% bonds and 40% more of the 5 % bonds, thereby increasing his annual income by 410. find his initial investment in each type
of bond

x=original 3% investment
y=original 5% investment

3.75x+7y = 1570

i don't know what to do next,please help!

thank you

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