Advertisements
Advertisements
प्रश्न
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 y units of potatoes and 2 units of rajma.
उत्तर
By unitary method,
∴ 1 unit of potatoes contain carbohydrates = 22 g
y units of potatoes contain carbohydrates = 22 × y = 22y g
Similarly,
∴ 1 unit of rajma contain carbohydrates = 60 g
∴ 2 units of rajma contain carbohydrates = (60 × 2) = 120 g
Hence, the required expression is 22 y + 120.
APPEARS IN
संबंधित प्रश्न
Identify the term, their coefficients for the following expression:
\[\frac{a}{2} + \frac{b}{2} - ab\]
Constant is only 8 other is variable 2y –`7/3` z ÷ x
Write the coefficient of: xy in – 3axy
Add : - 3a + 2b and 3a + b
Enclose the given term in bracket as required:
x2 – xy2 – 2xy – y2 = x2 – (……..)
Enclose the given term in bracket as required:
– 2a2 + 4ab – 6a2b2 + 8ab2 = – 2a (………)
Simplify: `10 – {4"a" – (7 – bar ("a" - 5) - (5"a" - bar(1 + "a")))`
Find the numerical co-efficient of the following term:
−3yx
Identify term which contain x and give the coefficient of x.
1 + x + xy
– a – b – c is same as – a – (______).
