9. A dust mite is about 250 microns long. One micron equals 0.001 millimeter. How long is a
1 answer:
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Answer:
Step-by-step explanation:
Given: tape diagram
To find: an equation to represent the image
Solution:
In the image, the area of the tape diagram indicating 1.75 is equal to the sum of areas of all the five parts in the diagram such that each part indicates n.
So, according to the given information, the equation is .
Here, we have assumed that 1.75 represents an area of the first rectangle, and n represents the area of each of the small rectangle.
Answer:
Step-by-step explanation:
Given that When n is divided by 21, the remainder is an odd number.
i.e. where m is an integer and k a positive integer <21
When n is divided by 28, the remainder is 3
, where c is a positive integer
This can be written as
Since n is giving odd remainder when divided by 21,
we get r =3 as n is a multiple of 7 +3