A.) Jon’s total at Trader Joe’s was $37.52. He had a coupon for a 25% off. What was the new total?

Mathematics

1 answer:

Zina [86]2 years ago

7 0

Answer: $30.67

Step-by-step explanation:

First, you have to take off 25% of his total. That's the same as multiplying it by .75.

37.52 × 0.75 = $28.14

Now you have to add on the 9% sales tax. That's the same as multiplying by 109%, or 1.09.

28.14 × 1.09 = $30.67

Hope that helps!

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Re-write in slope-intercept form of an equation: x- 2y = 4

creativ13 [48]

Answer:

The final equation is $\bold{y=-\frac{1}{2}x -2}$ .

Step-by-step explanation:

To rewrite an equation in slope-intercept form, our equation must be in $\text{y = mx + b}$ form. This means the y-variable must be on the left side of the equation and the slope and y-intercept must be on the right side of the equation. We can do this by moving the equation around.

$\text{y = mx + b \ \ This is the equation we want to reach.}\\\\\text{x - 2y = 4 \ \ This is what we are given.}\\\\\text{-2y = -x + 4 \ \ Move the x to the right by subtracting it from both sides.}\\\\{y = -\frac{1}{2}x - 2} \ \ \text{When we divide by two, we get this.}$