A packet of sweets contains only blue and red sweets the ratio of blue to red sweets in a packet is 2:1 if there are 12 sweets in total how many red sweets are there

4 red swets

Step-by-step explanation:

2 + 1 = 3 (Total units of both red and blue sweets)

3 units = 12

1 unit = 12 ÷ 3 = 4

Since red sweets has only 1 unit, there are 4 red sweets out of 12 sweets.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

10 b/c 5*2 =10

step-by-step explanation: