Answer:
An equation in slope-intercept form for this line is
Step-by-step explanation:
Slope intercept form :
We are given that A line passes through the point (4, −9) and has a slope of 5/2.
So,
Substitute the value in the equation :
So,
So, an equation in slope-intercept form for this line is
Then, now that we have solved for T, we can evaluate and solve for t=20 minutes.
Answer:
$450 is the original price
Step-by-step explanation:
We can create a proportion to find the sale on the original price. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the prices and percents. It is marked down by 30% so we pay 70% of the original. The sale price is $315.
We begin solving by cross multiplying numerator to denominator of each fraction.