Answer:
x = 8
Step-by-step explanation:
30x = (60)(40)
30x = 240 Multiply 60 and 40
x = 8 Divide 30 from both sides
You solve for y
4y=-6x+2
y=-6/4x+2
y=-2/3x+2
Slope is -2/3, the number in front of x is the slope.
Answer:
-3
Step-by-step explanation:
Divide through the equation by the leading coefficient to obtain:
y+3x-4=0
y=4-3x
and our gradient is -3
Answer:
h = Hannah's age
h - 2 = Anthony's age
Hannah is 47, Anthony is 45
Step-by-step explanation:
Using one variable and an expression with the same variable, you can find the sum of the siblings ages:
h = Hannah's age
h - 2 = Anthony's age
h + (h - 2) = 92
Combine like terms: 2h - 2 = 92
Add '2' to both sides: 2h - 2 + 2 = 92 + 2 or 2h = 94
Divide by 2: 2h/2 = 94/2
Solve for h: h = 47 years old (Hannah)
h - 2 = 45 years old (Anthony)
When x = 1
5(1) = -y + 6
5 = -y + 6
y = 6 - 5 = 1
When x = 2
5(2) = -y + 6
10 = -y + 6
y = 6 - 10 = -4
When x = 3
5(3) = -y + 6
15 = -y + 6
y = 6 - 15 = -9
