Find the values of x and y.
3x - 5
5y - 4
y + 12
X =
y=

Following are the calculation to the x and y value:

 Given:

To find:

x,y=?

Solution:

Subtracting the equation (b) from the equation (a):

Putting the value of y into the equation (b):

Therefore, the final answer is "7 and 4".

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x = 7

y = 4

Step-by-step explanation:

3x - 5 = 5y - 4 (sides of an equilateral ∆)

3x - 5y = 5 - 4

3x - 5y = 1 › Eqn. 1

3x - 5 = y + 12 (sides of an isosceles ∆)

3x - y = 5 + 12

3x - y = 17 ---› Eqn. 2.

Subtract eqn 2 from eqn 1.

3x - 5y = 1 › Eqn. 1

3x - y = 17 ---› Eqn. 2.

-4y = -16

Divide both sides by -4

y = 4

Substitute y = 4 into eqn. 2

3x - y = 17 ---› Eqn. 2.

3x - 4 = 17

3x = 17 + 4

3x = 21

Divide both sides by 3

x = 7

29 mil

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt