Ernie's income is 4/5 of what it used to be and Jack's income is now twice what Ernie used to make. How much do they earn combined if Ernie used to make $6000?
If Ernie's income is 4/5 of what it used to be, she is earning 4/5*$6000=$
<gadget id="calculator">4/5*6000</gadget>
<output>4_800</output>
4800 now.
Jack's income is now twice what Ernie used to make a total of 2*$6000 = $
<gadget id="calculator">2*6000</gadget>
<output>12_000</output>
12000.
Combined, Ernie and Jack are making $12000+$4800 = $
<gadget id="calculator">12000+4800</gadget>
<output>16_800</output>
16800.

<result>16_800</result>