Solve for x and y. 3x+8y=20. 5x+3y=23

x=4 and y=1

Step-by-step explanation:

Equation 1) 3x+8y=20  

Equation 2) 5x+3y=23

Equation 1) 5(3x+8y=20 )  

Equation 2) 3(5x+3y=23)

15x+40y=100

15x+9y=69

(Take away 40y from 9y and 100 from 69)

31y = 31

y=1

Substitute y=1 into equation 1)

3x+8=20

(Take away 8 from both sides)

3x=12

(Divide by 3)

x=4

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

the answer is c.

step-by-step explanation: