Simple interest= prt
=806.68 (.0525)(1)
=42.35
Balance=investment + interest earned
806.68+42.35=$849.03
<u>2 red marbles = x red marbles </u>
7 blue marbles = 117 blue marbles <<<PROPORTION
(total) (total)
<u>117x2 = 234 </u>
7 = 7 <<< = 33.42857143
here's a simpler way of writing that>>> 33.4 or 33
Hey there!
For this problem, all you need to do is some multiplication:
40 ft per car * 28 cars = 1,120 ft total
30 ft per car * 34 cars = 1,020 ft total
You can see that Train A exceeds the limit, while Train B doesn't.
Hope this helped you out! :-)
Let x = width
2x + 3 = length
Area of rectangle is length times width
x(2x + 3) = 77
2x² + 3x = 77
2x² + 3x - 77 = 0
2x² + 14x - 11x - 77 = 0
2x(x + 7) - 11(x + 7) = 0
(2x - 11)(x + 7) = 0
x = 11/2, - 7
Distance/measurements can't be negative so x = 11/2
The length:
2(11/2) + 3
11 + 3
14
Your width is 11/2 feet and your length is 14 feet.
