Advertisements
Advertisements
Question
Observe the following nutritional chart carefully:
| Food Item (Per Unit = 100g) | Carbohydrates |
| Rajma | 60g |
| Cabbage | 5g |
| Potato | 22g |
| Carrot | 11g |
| Tomato | 4g |
| Apples | 14g |
Write an algebraic expression for the amount of carbohydrates (in grams) for 2x units tomatoes and y units apples.
Advertisements
Solution
By unitary method,
∴ 1 unit of tomatoes contain carbohydrates = 4 g
∴ 2x units of tomatoes contain carbohydrates = 2x × 4 = 8x g
Similarly,
∴ 1 unit apples contain carbohydrates = 14 g y units apples contain carbohydrates = 14 × y = 14y g
Hence, the required expression is 8x + 14y.
APPEARS IN
RELATED QUESTIONS
Identify the terms, their coefficients for the following expressions.
0.3a − 0.6ab + 0.5b
Identify term which contain x and give the coefficient of x.
y2x + y
In -5x3y2z4 ; write the coefficient of: z2 Also, write the degree of the given algebraic expression.
In -5x3y2z4 ; write the coefficient of y2 Also, write the degree of the given algebraic expression.
Simplify: – 16am + 4mx + 4am – 15mx + 5am
Find the sum of: + 4a and -7b
Simplify: p + q – (p – q) + (2p – 3q)
Simplify: -5m (-2m + 3n – 7p)
Factorise the following expression.
a2b + a2c + ab + ac + b2c + c2b
Number of terms in the expression 3x2y – 2y2z – z2x + 5 is ______.
