Answer:
2.5
Step-by-step explanation:
7.5 divided by 3 equals 2.5.
(Also next time you can use a calculator)
<u>C. 76,500</u>
Y-intercept: 2 Slope: -3 so... A.
The Awsner is A.
pen = $1.20, pencil = $0.50
let x = pen
let y = pencil
create system of equations:
3x + 6y = 6.60 [can be simplified to be x + 2y = 2.20]
5x + 8y = 10.00
substitution method:
x = 2.2 - 2y
5(2.2 - 2y) + 8y = 10
11 - 10y + 8y = 10
-2y = -1
y = 1/2
solve for 'x':
3x + 6(1/2) = 6.6
3x + 3 = 6.6
3x = 3.6
x = 1.2
{-6 , 7 , 1} {9 , -3 , -4} {5 , -8 , 4} --- 2, 2, 1
Number 1: {-6 , 7 , 1} {9 , -3 , -4} {5 , -8 , 4} --- 2, 2, 1
Number 2: {-6 , -3 , 9} {4 , 7 , -8} {5 , 1 , -4} --- 0, 3, 2
Number 2: {-4 , 5 , 1} {7 , 4 , -8} {-6 , -3 , 9} --- 2, 3, 0
