Answer:
25.
Step-by-step explanation:
Let the number of pupils be x, then:
there are 0.6x girls and 0.4x boys.
From the given information:
0.6x - 0.4x = 5
0.2x = 5
x = 5/0.2
= 50/2
= 25.
Answer:
72
Step-by-step explanation:
A person can read 24 pages in 1/3 hour. There are 3 * 1/3 hours in 1 hour.
So, the person can read 24 * 3 = 72 pages in one hour.
Roast Beef: 32
Vegetarian:48
Hope this helps :)
Check the picture below.
now, the sides at the bottom, the straight sides, are plain to see how long each is, you can pretty much count the units off the grid.
so, the only ones you need the distance formula or pythagorean theorem is the slanted ones, there are two, and both are equal, so, just get the length of one, and double it up.

double that up, and both slanted sides are 10, the perimeter is all sides summed up.
Answer:
1 ton = 1000 kg
So, 17 ton = 17 × 1000
= 17000 kg
17000 + 200 kg = 17200 kg
