Every morning holly go to school with a 1 l bottle of water she drinks 1/4 of the bottle before school starts and 2/3 of the rest before lunch how many milliliters are left in the bottle at lunch

250 milliliters

Step-by-step explanation:

Every morning Holly go to school with a 1 L bottle of water. she drinks 1/4 of the bottle before school starts. It means that the amount of water that is left in the bottle would be

1 - 1/4 = 3/4L

She drinks 2/3 of the rest before lunch. This means that the amount of water that she drinks before lunch would be

2/3 × 3/4 = 2/4 = 1/2L

Therefore, the amount of water left in the bottle at lunch would be

3/4 - 2/4 = 1/4L

There are 1000 milliliters in 1 litre

Therefore, 1/4L = 0.25 × 1000 =

250 milliliters.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6