Answer:
The cost of 10 ice-cream cones is <u>40 dollars</u>.
Step-by-step explanation:
Here we have given that the cost of 5 ice-creams cone is 20 dollars. So, finding the cost of 1 ice-cream cone.




Hence, the cost of 1 ice-cream cone is 4 dollars.
Now, we know the cost of 1 ice-cream cone. Thus, finding the cost of 10 ice-cream cones.



Hence, the cost of 10 ice-cream cones is 40 dollars.

Step-by-step explanation:
= 4x( x -1) -7( x-1)
= 4x^2 -4x -7x +7
= 4x^2 -11x +7
Answer:
y = 2x + 2
Step-by-step explanation:
<em>(a) Slope
</em>
The point-slope formula for a straight line is
y₂ - y₁ = m(x₂ - x₁)
The line goes through the points (-1, 0) and (0, 2).
2 – 0 = m[0 – (-1)]
2 = m
(b) y-intercept
y = mx + b
Use the point (0, 2)
2 = 2× 0+ b
2 = 0 + b
b = 2
∴ y = 2x + 2
Answer:
x = 1/3 or x = -2/3
Step-by-step explanation:
Let's solve your equation step-by-step.
9x2+3x−2=0
For this equation: a=9, b=3, c=-2
9x2+3x+−2=0
Step 1: Use quadratic formula with a=9, b=3, c=-2.



x = 1/3 or x = -2/3