X + y = 6
x - 6y = -9
Subtract the equations, you get:
y - (-6y) = 6 - (-9)
7y = 15
y = 15/7
x + 15/7 = 6
x + 15/7 = 42/7
x = (42-15)/7
x = 27/15
None of your answer choices are correct, since the solution to the systems of equation is (27/15, 15/7)
The cost of a typical Dallas home phone bill can be calculated by multiplying the given average utility cost for Dallas by the decimal equivalent of the given percentage.
average phone bill cost = ($326)(0.126)
average phone bill cost = $41.076
Thus, the phone bill of average Dallas home is approximately $41.076.
Answer:
1/10
Step-by-step explanation:
First you've got to find common denominators. The common denominator would be 10 since 10 is divisible by 5 and 10. That means you've got the change the denominator of -4/5. Multiply both the numerator and denominator by 2 to grt -8/10.
Then all you have to do is:
9 + -8 1
——— = —
10 10
Khan academy also has some great videos on this if you're confused.
Answer: 241 days a year
Step-by-step explanation: 365*0.66=240.9 and then you round up to 241
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thanks for the points and have a wonderful day :)