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kerryanne78
20.10.2020 •
Mathematics
Please help me I don't understand and have to get this done by 5;00 how do you turn 4.22 into a mixed number?
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Ответ:
4 11/50
Step-by-step explanation:
4.22 = 4 22/100
Now, we simplify!
4 22/100
4 11/50
Hope this helps!
Ответ:
(2,3)
Step-by-step explanation:
A system of equations is 2 or more equations for which the same x,y solution exists. We can solve the system in three ways: elimination, substitution, or graphing. Substitution can be used by substituting the value of one variable into the equation.
Because y=5x-7, we can substitute 5x-7 into y in -3x-2y=-12.
-3x-2(5x-7)=-12
-3x-10x+14=-12
-13x+14=-12
-13x+14-14=-12-14
-13x=-26
x=2
We now substitute x=2 into y=5x-7.
y=5(2)-7
y=10-7
y=3