Answer: I think it's 960.
Step-by-step explanation:
Add up all of the numbers:
(160.2+163.2+157.8+159) = 640.2
Find the average by diving 640.2 by how many numbers there are:
640.2 ÷ 4 = 160.05
Round that average^^:
160.05 >>> 160
Multiply by how many numbers there will be:
In this case, your job is to estimate how far Jose ran in 6 months, not just those 4. So instead of multiplying the average (160) by 4, you'd multiply it by 6.
160 x 6= 960
Answer:
Side length of each placement is 6 inches.
Step-by-step explanation:
Kelly is using a ribbon to trim two identical placements of length = 80 inches
Each placement is in the shape of a regular hexagon.
So perimeter of these regular hexagons = 2×(Sum of all 6 sides of a hexagon)
Let the side length of each regular hexagon = x inches
Total perimeter of these identical placements = 2(6x) = 12x
Perimeter of identical placements = Length of the ribbon used
12x = (80 - length of leftover ribbon)
12x = 80 - 8
x =
x = 6 inches
Therefore, side length of each placement is 6 inches.
Answer:
Step-by-step explanation:
<u>Solve equation</u>
- 3x - 5 = 4 + 2x
- 3x - 5 - 2x + 5 = 4 + 2x - 2x + 5
- x = 9
First, since both of the equations are equal to y you can set the equations equal to each other.
y=-2x +1
y=-2x^2 + 3x +1
-2x + 1= -2x^2 + 3x + 1
Second, add 2x^2 and subtract 3x and 1 from both sides.
-2x + 1 = -2x^2 + 3x + 1
-3x -1 +2x^2 +2x^2 -3x -1
________________
2x^2 - 5x = 0
Third, factor out an x.
x(2x - 5) = 0
Fourth, solve for x by setting each factor equal to 0.
x= 0 2x-5=0
+5 +5
_______
2x = 5
---- ----
2 2
________
x=5/2
So the values of x that satisfy the system of equations is 0 and 5/2.
Answer: A/B *100,000.
Step-by-step explanation: Since crude death rate is the number of deaths of persons in a particular area divided by the total population of that area at a particular time multiplied by 100,000.
Mathematical expression :
(Total persons death in 2009/
Total population in 2009) * 100000