Answer:
8/3 is the fraction and 8 1/3 is the mix number
Step-by-step explanation:
4x+5y=7
y=3x+9
1) 4x+5(3x+9)=7 2) y=3(-2)+9
y= -6 +9
4x+15x+45=7 y=3
19x+45=7
19x= -38
x= -2
x is -2 and y is 3
The answer is (5,3). You need to equal both sides out. So 5x-22=4x-17. That will give you x=5. After that you substitute 5 for x in one or both of the equations and get that y=3. Hope this helps!
Answer: Look at the tenths place to round to the nearest whole number.
Compare the estimated sum to the actual sum.
The estimated answer is close to the actual answer.
Step-by-step explanation:
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