if a 1/2 kilogram of beef costs £1.60 work out the coast of 3/4 of a kilogram.
1/2 kg costs £1.60
1 kg costs £3.20
3/4 kg costs £ (3/4)(3.2) = £ 2.40
or
set up a proportion:
.5/1.6 = .75/x
.5x = 1.2
x = 1.2/.5 = 2.4
Thank You very much.
To find the cost of 3/4 of a kilogram of beef, you can set up a proportion using the given information.
Let x represent the cost of 3/4 kilogram of beef.
The proportion can be set up as follows:
1/2 kilogram / £1.60 = 3/4 kilogram / x
To solve for x, we can cross-multiply:
(1/2) * x = (3/4) * £1.60
Multiply both sides by 2 to eliminate the fraction:
x = (3/4) * £1.60 * 2
Simplify:
x = £1.20 * 2
x = £2.40
Therefore, the cost of 3/4 kilogram of beef is £2.40.
To work out the cost of 3/4 of a kilogram of beef, we can use the given information that 1/2 kilogram of beef costs £1.60.
First, let's calculate the cost per kilogram of beef by dividing the cost (£1.60) by the weight (1/2 kilogram):
Cost per kilogram = £1.60 / 0.5 kg = £3.20/kg
Next, we need to find the cost of 3/4 of a kilogram of beef. To do this, we multiply the cost per kilogram (£3.20) by the weight (3/4 kilogram):
Cost = £3.20/kg * 0.75 kg = £2.40
Therefore, the cost of 3/4 of a kilogram of beef is £2.40.