Question

От мотка проволоки длиной 45 м сначала отрезали 35дм,а потом в 3 раза больше. Сколько проволоки осталось в мотке?

Answer 1

1 метр=10дм
45м=450дм
1.450-35=415дм -осталось после отрезки
2.35*3=105дм-отрезали во 2 раз
3.415-105=310дм=31м остался в мотке

Answer 2

Calculating Remaining Wire in the Spool

To calculate the remaining wire in the spool after cutting 35 meters and then cutting 3 times more, we can follow these steps:

1. Initial Length of Wire: The initial length of the wire in the spool is 45 meters. 2. First Cut: 35 decimeters (3.5 meters) of wire is cut from the spool. 3. Second Cut: 3 times more wire is cut, which is 3 * 3.5 = 10.5 meters.

Calculation

- Initial length of wire: 45 meters - First cut: 35 decimeters (3.5 meters) - Second cut: 3 times more than the first cut, which is 3 * 3.5 = 10.5 meters

Remaining Wire in the Spool

To find the remaining wire in the spool, we subtract the total length of wire cut from the initial length of the wire.

Remaining wire = Initial length - (First cut + Second cut)

Remaining wire = 45 meters - (3.5 meters + 10.5 meters) = 45 meters - 14 meters = 31 meters

The remaining wire in the spool is 31 meters.