Advertisements
Advertisements
Question
At age of 2 years, a cat or a dog is considered 24 “human” years old. Each year, after age 2 is equivalent to 4 “human” years. Fill in the expression [24 + 
(a – 2)] so that it represents the age of a cat or dog in human years. Also, you need to determine for what ‘a’ stands for. Copy the chart and use your expression to complete it.
| Age | [24 +  (a – 2)] |
Age (Human Years) |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
Advertisements
Solution
The expression is [24 + 4(a – 2)]
Here, ‘a’ represents the present age of dog or cat.
| Age | [24 + 4 (a – 2)] | Age (Human Years) |
| 2 | [24 + 4(2 – 2)] | 24 |
| 3 | [24 + 4(3 – 2)] | 28 |
| 4 | [24 + 4(4 – 2)] | 32 |
| 5 | [24 + 4(5 – 2)] | 36 |
| 6 | [24 + 4(6 – 2)] | 40 |
APPEARS IN
RELATED QUESTIONS
Simplify combining like terms: 5x2y − 5x2 + 3y x2 − 3y2 + x2 − y2 + 8xy2 −3y2
Add: 3p2q2 - 4pq + 5, - 10p2q2, 15 + 9pq + 7p2q2
Subtract: a (b - 5) from b (5 - a)
What should be taken away from 3x2 - 4y2 + 5xy + 20 to obtain - x2 - y2 + 6xy + 20?
Add the following algebraic expression:
4xy2 − 7x2y, 12x2y − 6xy2, − 3x2y +5xy2
Subtract:
\[\frac{2}{3} y^3 - \frac{2}{7} y^2 - 5 \text { from }\frac{1}{3} y^3 + \frac{5}{7} y^2 + y - 2\]
The sum of –7pq and 2pq is ______.
The number of scarfs of length half metre that can be made from y metres of cloth is ______.
Add the following expressions:
p2qr + pq2r + pqr2 and – 3pq2r – 2pqr2
Add the following expressions:
`5/8p^4 + 2p^2 + 5/8; 1/8 - 17p + 9/8p^2` and `p^5 - p^3 + 7`
