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Varvara68 [4.7K]
3 years ago
8

Solve each system by substitution. 11) 3x - y = 20 y=-2

Mathematics
2 answers:
ehidna [41]3 years ago
8 0

Answer:

lol you stupid how do you not know

Step-by-step explanation:

lol

Vesnalui [34]3 years ago
5 0
Hello there! I think x=6 because you would substitute “-2” for “-y” and when you multiply two negatives they turn into a positive. You then put your “2” on the other side of the equal marks. Then just do 3x/18 and you get 6.
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Step-by-step explanation:


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3 years ago
In Bangor it’s -3 F in Fairbanks it’s -12 F in Fargo it’s -8 F and in Calgary it’s -15 F in which city is to the coldest?
jonny [76]

Answer:

Calgary is the coldest

Step-by-step explanation:

The simple way to determine this will be to change the value of temperatures given in Fahrenheit to Celsius

32 F = 0°C

Formula to apply will be (T-32)×5/9 -------------where T is temperatures in Fahrenheit

Bangor is -3F-------------------change to Celsius

(-3-32)×5/9 =-35 × 5/9 = -19.44°C

Fairbanks is -12 ------------------------change to Celsius

(-12-32)×5/9 = -44 × 5/9 = -24.44°C

Fargo is -8 F ---------------------Change to Celsius

(-8-32)×5/9= -40×5/9 = -22.22°C

Calgary is -15 F-------------------------Change to Celsius

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3 0
3 years ago
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denis23 [38]

Answer:

C

Step-by-step explanation:

8 0
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