So what it is asking you to do is compare the amount of oats to the other ingredients. ex, 2 cups of oats for every 0.5 cup of quinoa. just do that for the rest of them
Let t represent Todd's age now.
.. 4(t -3) -(t -3) = 81 . . . . . . 3 years ago, their differnce in ages was 81.
.. 3t -9 = 81
.. t = (81 +9)/3 = 30
Todd is 30 now.
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You can also work this by considering "ratio units." 3 years ago, the ratio of their ages was 4:1, a difference of 3. That difference corresponds to 81 years, so each "ratio unit" represents 81/3 = 27 years. Todd's age then was 1 ratio unit, 27 years. Now, Todd's age is 30.
25% is the same is 1/4 of something. So you have to find what 1/4th of 48 is. To do that, just divide 48 by 4. and you get 12.
A 25% payment on a CD player that costs $48 would be $12. Hope that helps!
Is that the work you did on it already?
Answer:
Equation of line passing through point A = ( 19 , 3 ) , and point B = ( 20 , 3 ) is
y−3=0
OR
Equation of line passing through point A = ( 19 , 3 ) , and point B = ( 29 , 3 ) is
y=0x+3