Jackie S. answered • 11/23/19
Math/statistics/biostatistics tutor ready to help
So Paula originally wanted to donate $50 per month, which is equal to 12 x $50 = $600 per year.
The minimum total amount she can donate each month to be in the silver category is $100/12 = $8.34. In this case, she'd reduce her monthly donation by $50 - $8.34 = $41.66.
The maximum total amount she can donate each month to be in the silver category is $500/12 = $41.67. In this case, she'd reduce her monthly donation by $50 - $41.67 = $8.33.
So Paula can reduce her monthly donation by any amount between $8.33 and $41.66 and still remain in the silver category.
Jackie S.
You need the reduction to be between $8.33 and $41.66. If she were to reduce her monthly donation by, say, $8, she'd be above the silver category's $500 upper bound. And if she were to reduce her monthly donation by, say, $42, she'd be below the silver category's lower bound. Since there's a range to be "in" the category, both the upper and lower bounds matter. With that said, if she's truly concerned with reducing her spending, I'd say that reducing her monthly donation by no more than $41.66 would be more important to know than reducing it by no less than $8.33. This corresponds to monthly donations between $50 - $41.66 = $8.36 and $50 - $8.33 = $41.67, so for someone trying to spend less money, a minimum of $8.36/month is likely more helpful than a maximum of $41.67/month.11/23/19
Waldo J.
So if I put $8.33 would it be right11/23/19