Just type it into the graphing calculator, but reorder and solve for y first.
x + y = 9
y = 9 - x
y = x^2
In the graphing calculator,
Y1 = 9 - x,
Y2 = x^2
If you don't have a graphing calculator try desmos.
1 ton= 2,000 pounds
STEP 1:
Multiply number of tons by 2,000 pounds
= 3 tons * 2,000 lbs/ton
= 6,000 lbs
STEP 2:
Add the extra pounds given (600 pounds) to calculated pounds in step 1
= 6,000 lbs + 600 lbs
= 6,600 pounds
ANSWER: 3 tons 600 pounds is equal to 6,600 pounds.
Hope this helps! :)
520x21 is 10,920
So she swam 10.92kilometers
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