Answer:
NONE OF THE ABOVE!!
Step-by-step explanation:
A regular polygon is equilateral and equiangular, and also, can be inscribed into a circle. The polygon shown doesn't meet any of these conditions.
Simple...
remember A(B+C)=A*B+A*C
You have to have a common factor in both terms..(number)..this number would be 6.
So we know it has to have 6 in your answer.
If we plug n chug..:
20*6+20*5=220
6*40+6*5=270
6*40+6=246
6*4+6*5=54
6*45= 270
This being said, 6*40+6*5 is the choice you need.
Thus, your answer.
Answer:
The ratio of model sofa is 16:7
The ratio of real sofa is 80:35, simplest ratio is 6:7
They do have the same ratio.
Step-by-step explanation:
Answer:
<h3>x = 21/10y</h3>
Step-by-step explanation:
If the variables x and y vary inversely, this is expressed as;
x ∝ 1/y
x = k/y
k is the constant of proportionality
Given;
x = 7/2 and y = 3/5
Substitute;
7/2 =k/(3/5)
Cross multiply
k = 7/2 * 3/5
k = 21/10
Substitute the value of k into the formula;
x = k/y
x = (21/10)/y
x = 21/10 * 1/y
x = 21/10y
Hence the equation relating x and y is x = 21/10y