Using the formula for finding slope...
y2 - y1 10 - 5 5
---------- = -------- = -----
x2 - x1 4 - 2 2
The slope of the line is 5/2.
This means that 5 mm of rain falls every 2 hours.
The answer is 52.5 miles away.
First, you need to divide 15 and 2 by 2 to get a unit rate: 1 cm = 7.5 miles.
Then you multiply both numbers by 7: 7 cm = 52.5 miles.
Hope this helps!
Answer:
B
Step-by-step explanation:
Given
y = f(x), then
y = f(x ± a) is a horizontal translation of a units
• If f(x + a) then shift of a units left ←
• If f(x - a) then shift of a units right →
Begin by following the herd . . . call the two numbers 'x' and 'y' .
You said that xy=1 , so y = 1/x
You said that x + y = 10, so x + 1/x = 10
Multiply each side by 'x': x² + 1 = 10x
Subtract 10x from each side: x² - 10x + 1 = 0
Use the quadratic formula to solve this, and the two solutions
that you get for 'x' are also the two numbers 'x' and 'y' .
They are
<em>9.89898</em>
and
<em>0.10102</em>
(rounded)
Total amount = $80
Amount left= $54.74
So amount spent = 80 - 54.74 = $25.26
Let the number of pounds be ‘x’
8.42 x = 25.26
x = 3
Ans: She bought 3 pounds of coffee
