Which system of equations has infinitely many solutions?
1 answer:
Answer: B.
Step-by-step explanation:
Let's solve your system by elimination.
4x−2y=8;−2x+2y=6
Add these equations to eliminate y:
4x-2y=8
-2x+2y=6
2x=14
Substitute 7 for x in 4x−2y=8:
(4)(7)−2y=8
−2y+28=8 (Simplify both sides of the equation)
−2y+28+−28=8+−28 (Add -28 to both sides)
−2y=−20
−2y/−2=−20/−2 (Divide both sides by -2)
y=10
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Answer:
122 1/4
Step-by-step explanation:
Hope this helps! :)
(12x12) 12x x12) / (3/2 x3/2)
PEMDAS = parathesis exponents multiplictation division add subtract.
12x12=24
3/2x3/2=9/4
12x2/3=8x12=96
so 24+96=120
9/4 can be like 4x2=8 so i remaing
120+2=122 1/4?
Answer:
Step-by-step explanation:
<u>Convert a Repeating Decimal to a Fraction </u>
We need to convert the following decimal to a fraction:
Let's call x to the given number:
The number has two repeating (periodic) decimals, thus we multiply by 100:
Note the decimals continue to repeat exactly like the original number.
Subtracting both expressións, the repeating decimals are simplified:
Operating:
99x=-37
Dividing by 99:
The fraction cannot be simplified, thus: