Answer:
Step-by-step explanation:
y = 1/8x - 1.....sub this back in for y in the other equation
-5x + 4y = -13
-5x + 4(1/8x - 1) = -13
-5x + 1/2x - 4 = -13.....multiple everything by 2 to get rid of the fraction
-5x(2) + 1/2x(2) - 4(2) = -13(2)
-10x + 1x - 8 = - 26
- 9x = -26 + 8
-9x = - 18
x = 18/9
x = 2.....now sub 2 in for x in either of the original equations to find y
y = 1/8x - 1
y = 1/8(2) - 1
y = 1/4 - 4/4
y = -3/4
so ur solution is : (2,-3/4) <===
My answer to what is the total amount she will pay with 7% tax is $14,980
Hey You!
1. 5 - 8 / 5 × 100 = 60
From $5 to $8 is 60% increase.
2. 20 - 30 / 20 × 100 = 50
From 20 students to 30 students is a 50% increase.
3. 86 - 150 / 86 × 100 = 74.4186046511628 Round to 74.
From 86 books to 150 books is a 74% increase.
4. 3.49 - 3.89 / 3.49 × 100 = 11.461318051575958 Round to 11.
From $3.49 to $3.89 is 11% increase.
C is the missing reason in this proof.
1 gallon=16 cups
3 times 16=48
plus 14 mroe
48+14=62 cups total