To find the slope between two coordinates, you use the formula:
m = y2 - y1/x2 - x1
If coordinate A is (-2, 5) and coordinate B is (3, -4), then:
y2 = -4
y1 = 5
x2 = 3
x1 = -2
So, just substitute the points into the formula.
m = -4 - 5/3 - (-2)
m = -9/5
The slope of the line is -9/5.
You'd simply have to find 20% of $40. To find the percent of a number, you would change the percent into an actual decimal/number, and then multiply them both. So the percent would become 0.20.
40 × 0.20 = 8
So now you would subtract 8 from the cost of 40.
40 - 8 = 32.
The shirt costs $32.
In order to find what 10% of a day is:
A day is 24 hours long.
Divide 24 by 100, then multiply the answer by 10.
24/100=0.24
0.24*10=2.4
So, 10% of the day is 2.4 hours.
2 hours and 30 minutes can be written as a decimal as 2.5.
So, 2 hours and 30 minutes is slightly more than 10% of the day.
Answer:
7%*12=6%(12+x)
.84=.72+.06x
.06x=.12
x=2
how much water should be added to 12 mL of 7% alcohol to reduce concentration to 6%? 2 ML
Step-by-step explanation:
First draw the first 2 pictures and then draw a subtracting line and draw the last 1 picture and solve the problem. The answer is 8.
