Xiao Gang has read 65% of a story book, 48 pages more than the rest. How many pages are there in this book

1-65% equals 35%. 65-35% equals 30%. 48 divided by 30% equals 160 pages

Xiao Gang finished reading a story book in two days. On the first day, he read 45% of the whole book. On the second day, he read 20 more pages than on the first day. How many pages in total?

Xiao Gang read 55% of the book the next day, 10% more than the first day. Let's set the book as X pages
10% x = 20, then x = 200 pages
That is to say, the book has 200 pages

What followed by a noun singular or plural, for example, what animal or what animals do you like

There is something wrong with your question
1. What's the weather like today?
2. What's your favorite animal?

As shown in the figure, there is a right triangle paper with two right angles AC = 6cm and BC = 8cm. Fold △ ABC so that point B coincides with point a. the crease is de. calculate the length of CD

Let CD = xcm, then ad = DB = (8-x) cm, ∵ ∠ C = 90 °, in RT △ ACD, according to Pythagorean theorem, we get: ad2-cd2 = ac2, that is, (8-x) 2-x2 = 36, the solution is x = 74, that is CD = 74cm

English translation
1. Infection
2. Destroy, subdue, overwhelm, pause, collapse,
3.keep...alive
4. Die of

1:be bitten with,be infected with
2:break down
3: Continue
4:die of /die from

If the ratio of three sides of a right triangle is 1:2: root 3, then one angle is 90 degrees and the other two angles are degrees
It's right angle side 1:2

There are too many conditions for this problem. We don't need to compare the three sides. As long as we compare the two sides and add a corner, we can conclude that the other two corners are 30 ° and 60 ° respectively
Maybe wrong, because the chord must be longer than any one strand, so it is impossible that 1:2 is the right angle side, and the root sign 3 is the hypotenuse

What is the use of the in make the tea

If tea has been mentioned before, it is a special term; otherwise it should be a general term

Given that a, B and C are three sides of △ ABC, and A2 + B2 + C2 = AB + AC + BC, then △ ABC is ()
A. Isosceles triangle B. right triangle C. equilateral triangle D. isosceles right triangle

The original formula can be reduced to 2A2 + 2B2 + 2c2 = 2Ab + 2Ac + 2BC, that is, A2 + B2 + C2 + A2 + B2 + c2-2ab-2ac-2bc = 0; according to the complete square formula, we can get: (a-b) 2 + (C-A) 2 + (B-C) 2 = 0; from the properties of non negative numbers, we can know that A-B = 0, C-A = 0, B-C = 0; that is, a = b = C. so △ ABC is an equilateral triangle, so we choose C

in charge in the charge of in charge of take charge of charge for free of charge charge… The difference between for

The difference in meaning,
In charge of
In the charge of
In charge of
Take charge of
Charge for free
Charge for charge

Add a number to the 97% denominator of 103, subtract the same number from the numerator, and the fraction is reduced to 13 / 27. What's the number

13(103+X)=27(97-X)
40X=1280
X=32

Xiao Gang has read 65% of a story book, 48 pages more than the rest. How many pages are there in this book