For elimination, multiply one whole equation by negative one (-1), then add or subtract according to your signs. After that, it will be a one-step equation.
3x + 4y = 19 3x + 4y = 19 3x + 4y = 19 -2y = -14 y = 7
3x + 6y = 33 -1 (3x + 6y = 33) -3x - 6y = -33 -14 / -2
Then you would go back and substitute the value of (y) back into either equation and then solve for the remaining variable (x). Finally, use both values to make an ordered pair.
3x + 4y = 19 3x = -9 x = -3 (-3 , 7)
3x + 4(7) = 19 (-9 / 3)
3x + 28 = 19
Good Luck
-1+ 5 i think I dont know
Jae has finished 25% of her homework.
<span><span>4/16
</span></span><span><span>=<span>1/4
</span></span></span><span><span>=1÷4
</span></span><span><span>=0.25</span></span>
Answer:
A). Alberto is the only right one because .80 * 5 = 4$
B). Claude will need 1.60$ because .80 * 2 = 1.60$
C). Dora can buy 12.5 pounds because 10$ / .80 is 12.5
D). Using Alberto's because he was the one who was correct
Step-by-step explanation:
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Answer:
a).1
b).1
c).111
Step-by-step explanation:
a) anything to the zero power is 1
b) any number divided by itself is one
c) 100+10+1=111
