Answer:
Z = 20
Step-by-step explanation:
3 x 20 = 60
60 - 12 = 48
Answer:
False
Step-by-step explanation:
Given
Required
True or False
The above numeral can be split as follows:
X means 10 and L means 50.
But because X (10) which is smaller comes before L (50), XL is executed as:
In Roman numerals;
Substitute 40 for XL and 4 for IV.
Hence;
<em /><em> is false</em>
Answer:
15 kg
Step-by-step explanation:
Radius of a solid sphere : mass of a solid sphere
3 cm : 9 kg
Find the mass of a sphere of the same material of radius 5 cm
Radius of a solid sphere : mass of a solid sphere
5 cm : x kg
Equate both ratios to find x
3 cm : 9 kg = 5 cm : x kg
3/9 = 5/x
3 * x = 9 * 5
3x = 45
x = 45/3
x = 15 kg
The mass of a sphere of the same material of radius 5 cm is 15 kg
To calculate percent change:
(difference between original and new)/original * 100
(19-15)/15 * 100 =
4/15 * 100 = 26.7 % increase
