A new time and space for the winter vacation of the sixth grade, and a new time and space for the su

If you think about it, I'll write it if you think about it, it's very annoying to play!

Add 16 to the denominator of 5/8, and to keep the fraction size constant, the numerator should (plus 10).

The denominator is increased by a factor of two, and the numerator is also increased by a factor of two to keep the fractional value unchanged. 5×2=10。

The denominator of 5/8 is added to 16, and to keep the fraction size constant, the numerator should be (add 10 or double it).

The denominator is increased by a factor of two, and the numerator is also increased by a factor of two to keep the fractional value unchanged. 5×2=10。

Got it?

Solution: Because the denominator plus 16 is the denominator multiplied by 3

So the numerator should also be multiplied by 3, that is, the numerator is 15

If the original Yi Nian Ye Cang is x tons, then the original person of A will shout 3x tons.

3x+80=（x+100）*2

3x+80=2x+200

3x-2x=200-80

Solve the first field x = 120

Solution: There were x tons of potatoes in the B warehouse.

A has 3x tons.

Column touches hands to celebrate the equation with a smile and shake:

3x+80=（x+100）*2

3x+80=2x+200

3x-2x=200-80

x=120

The next day, 1/5 of Yu Yuhui's seedlings were planted, which was 1 5 of all the saplings minus 24 5 of the seedlings.

There are as many trees that have not been planted as there are already trees, so 1 2 of all the saplings have been planted in two days

So the saplings are: (24-24 5) (1 2-1 5) = 96 infiltration and 5 10 3 = 64.

If each basket of apples is x kg, then each basket of pears is x + 20 kg.

25x+（x+20）*60=2645

x = 17 kg for a basket of apples and 37 kg for a basket of pears.

Assuming that each basket of apples weighs x kg, each basket of pears weighs x + 20 kg.

25x+（x+20）*60=2645

25x+60x+1200=2645

85x=2645-1200

85x=1445

x=17So, apples are 17 kg per basket, and pears are 17 + 20 = 37 kg per carton.

Original toothpaste cross-sectional area =

Modified toothpaste cross-sectional area =

Change in cross-sectional area due to change = square centimeters.

Increase the volume of toothpaste used per person per day = 2 * cubic centimeters.

Over the course of a year, brushing my teeth once a day for 365 days is counted as using more cubic centimeters.