4300×.30 = 1290
Her costs should be no more than $1290
The length of the field is 48 yard while the width of the field is 16 yards.
My Work/Reasoning:
Say that the width is "x" yards.
The length of the field is three times longer than the width.
The perimeter of the rectangle is 128 yards.
To get the perimeter of a rectangle you multiply the sum of the length and the width by two.
Then you follow order of operations and add x and 3x.
Then you multiply.
After that, you divide 8 on both sides to get the width (total) in yards.
Then you divide that to get the width.
Finally, to get the length of the field, you multiply the width of the field by three to get its length.
Lisa invests $4,000 in two types of bonds, bond A and bond B.
A + B = 4000
Bond A offers a 10% return, and bond B offers a 6% return.
.10 A + .06 B = 340
Her total return on the investment is $340. <span>since the relationship A+B=4000 must satisfy the setup for all values A and B
we can state that A = 2000 + n, and B = 2000 -n
afterall: 2000 +n + 2000 - n = 4000 for all n
.10(2000+n) + .06(2000-n) = 340, once we know n we know A and B</span>