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antoniya [11.8K]
3 years ago
8

Solving With Substitution (FOR 10 POINTS!): y= 2x + 1 3x + y = -9

Mathematics
1 answer:
Katen [24]3 years ago
8 0

Answer:

y = 2x + 1 \\ 3x + y =  \:  - 9 \\  \\ 3x + 2x + 1 =  - 9 \\ 5x =  - 10 \\ x =  - 2 \\  \\ y = 2( - 2) + 1 \\ y =  - 3 \\ ( - 2 \: and \:  - 3)

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Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the differenc
Mademuasel [1]
Let X is the random number Erik thinks of, and Y is the random number Nita thinks of.
Both X and Y are in the range from 0 to 20.
<span>X<=20
Y<=20
If the difference between their two numbers is less than 10, then Erik wins.
The difference between the two numbers can be written X-Y, or Y-X depending on which number (X or Y) is greater. But we do not know that. In order not to get negative value, we calculate absolute value of X-Y,  written |X-Y| which will give positive value whether X is greater than Y or not.
If |X-Y|<10 Erik wins.
</span><span>If the difference between their two numbers is greater than 10, then Nita wins. 
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6 0
3 years ago
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Lelechka [254]
((b1+b2)÷2)(h)=A
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3 years ago
A truck travels 52 1/2 miles and uses 2 1/2 gallons of gasoline. What is the fuel rate in miles per gallon?
kumpel [21]

Answer:

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3 0
1 year ago
F(x)=3x^3-4x^2+6x and g(x)=5x^3+2x^2-3x what is f(x)-g(x)
mrs_skeptik [129]
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7 0
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Read 2 more answers
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-Dominant- [34]

Answer:

x=

3 /2

Step-by-step explanation:

12(5x−4.5)=36

(12)(5x)+(12)(−4.5)=36(Distribute)

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Step 2: Add 54 to both sides.

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60x=90

Step 3: Divide both sides by 60.

60x

60

=

90 /60

x=

3 /2

6 0
3 years ago
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