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Artemon [7]
3 years ago
6

Solve the system of equations by substitution 2x+3y=9 y=x−2

Mathematics
2 answers:
EastWind [94]3 years ago
8 0

Answer:   x = 3, y = 1 OR  (3, 1)

Step-by-step explanation:

let 2x + 3y = 9  be [a]   &   y = x − 2 be [b]

First, lets substitute [b] into [a] and solve for x

   2x + 3( x - 2) = 9

          2x + 3x  = 9 + 6

                   5x = 15

                      x = 3

Now, since x = 3, we can substitute for x in [b]

       ⇒  y = 3 - 2

             y = 1

∴ the solution for the system of equations is x = 3, y = 1 OR  (3, 1)

garri49 [273]3 years ago
6 0

so I think u you divide something and you times and then you multiply it

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if x is a positive integer, for how many dofferent values of x is square root 48 over x a whole number
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5 0
3 years ago
at a track meet,Jacob and daniel compete in 220 m hurdles. Daniels finishes in 3/4 of the a min.Jacob finishes with 5/12 of a mi
Savatey [412]
Jacob has the faster time because if you make the fractions equal you would make the denominators equal by rounding 3/4 to have a denominator of 12 making it 9/12 which is larger then 5/12 making Daniel's time slower then Jacob's.

3 0
3 years ago
Plz help asap !! The high school jazz band is selling homemade leather bracelets at a local craft fair to raise money for a trip
torisob [31]

Answer:

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Step-by-step explanation:

The function type that would model this relationship is linear because for each bracelet sold, the jazz band would increase their profit by $2.  Since it has a consistent rate, it is linear.  Using the slope-intercept formula of y = mx + b, where 'm' is the rate and 'b' is the initial value, you can use $2 for the rate or cost per bracelet and -$200 for the initial value or cost of supplies:

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6 0
3 years ago
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What is the value of i^n if the remained of n/4 is 2<br> A. i<br> B. -i<br> C. -1<br> D. 1
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Answer:

5

Step-by-step explanation:

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3 years ago
The function of g(x)=8^2-48+65 written in vertex form is g(x)= 8(x-3)^2-7 what is the vertex of g(x)
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4 years ago
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