16 is 4% of
400 Change the percentage into a decimal by dividing the decimal over 100:
Divide 16 by the decimal (0.04):
Answer:
98 cm²
Step-by-step explanation:
Lateral surface area = surface area of the sides ONLY of the object
⇒ lateral SA = B + C + D = 35 + 28 + 35 = 98 cm²
Answer:
<h2>x + 2y = 8</h2>
Step-by-step explanation:
The standard form of an equation of a line:
We have:
Convert:
<em>multiply both sides by 2</em>
<em>add x to both sides</em>
Answer:
2 years: 9 months
We know that, 1 year =12 months
2 years =2×12 months
=24 months
Given
2 years: 9 months
This can be written as
=
9months
24months
=
3months
8months
=8 months :3 months
Hence, 8 months: 3 months is the simplest form of 2 years :9 months
Step-by-step explanation:
Answer:
15 and 1
Step-by-step explanation:
x and y are two numbers.
Two equations:
x · y = 15
x + y = 16
Rearrange one of the equations (I'll rearrange the sum equation):
x + y = 16
x = 16 - y
Substitute that to the other equation and solve for y:
x · y = 15
(16 - y) · y = 15
16 - y · y = 15
16 - y² = 15
-y² = 15 - 16
-y² = -1
y² = 1
y = √1
y = 1
Now substitute that to any of the equation and solve for x (in here, I'll choose the multiplication one):
x · y = 15
x · 1 = 15
x = 15
Now verify:
15 · 1 = 15
15 + 1 = 16
This is correct
