What this question is asking you to find 80% of 25. 10% of 25 is 2.5 because there is always a decimal point directly to the right of the ones place. (25.0)
You would move the decimal point over one place to find 10% of a given number. How I would approach this is to multiply 2.5 by 8 to find 80% of 25
2.5 x 8 = 20
80% of 25 = 20
You can expect the work group to get done 20 out of 25 of their objectives per quarter
The formula for the volume of a cylinder is pi * radius squared * height, or πr^2h.
To find the radius of the cylinder, take the given diameter (60 cm) and divide it by 2. 60 / 2 = 30 cm.
Now we need to either find the height in centimeters or find the radius in meters. Because a centimeter is 1/100 of a meter, we multiply the radius by 100 to get the radius in meters.
We also must square the radius. So 30 cm multiplied by itself equals 900 cm.
Radius: 900 / 100 = 9 m
We have to square the radius before plugging it into the equation because it would mess up the numbers if we didn't (0.3 m squared is 0.09 m, which is very small).
Now we can plug these values into the formula for the volume of a cylinder.
π * r^2 * h = π * 9 m * 1.7 m = ~48.066 cubic meters
Rounded to two decimal places is 48.07 cubic meters.
The volume of the tree trunk is about 48.07 cubic meters.
Answer:
m= rise/ run
Step-by-step explanation:
We can find the slope by
m= rise/ run
= change in y/ change in x
= ( y2-y1)/(x2-x1)
= vertical change/ horizontal change
Answer:
Option D
Step-by-step explanation:
Let the age of Barbara sister = x years
And the age of Barbara's brother = y years
"Barbara's sister is 7 years younger than Barbara's brother"
x = y - 7
If y = 21,
x = 21 - 7 ------(1)
"Barbara's sister is twice old as Barbara"
x = 2b --------(2)
By substituting the value of x from equation (2) to equation (1),
2b = 21 - 7
2b + 7 = 21 + 7
2b + 7 = 21
Therefore, Option D will be the answer.