Pepe's pizza makes 52 pizza crusts the first week and 180 pizza crusts each subsequent week. Dianne's Delicatessen makes 26 pizz
a crusts the first week and 90 pizza crusts each subsequent week. In how many weeks will the total number of pizza crusts made by Pepe's Pizza equal twice the total number of pizza crusts made by Dianne's Delicatessen?
<span>Let pn = The total number of pizza crusts </span>made by the end of the nth week
For Pepe's Pizza: Pn + 52 + 180n
For Diannes's Pn = 25 + 90n
<span>The total number of pizza crusts made by Pep's Pizza equals twice the total number of pizza crusts made by Dianne's Delicatessen when: 52 + 180n = 2 (26 + 90n) 52 + 180n = 52 + 180n
</span>This equation is satisfied for any value of n, so Pepe's always makes twice as much as Dianne's
She saves 1/10 of her salary. That's the simplified version, it can also be written 10/100. Fractions, decimals, and percentages are all interchangeable.
