Are there (10) (9) (1) (11) pairs of natural numbers larger than 70 and smaller than 80? There's another question. These two questions are not the same, Put it on the digital table Can you use two circles to represent different numbers? Write it down

Are there (10) (9) (1) (11) pairs of natural numbers larger than 70 and smaller than 80? There's another question. These two questions are not the same, Put it on the digital table Can you use two circles to represent different numbers? Write it down

There are nine natural numbers larger than 70 and smaller than 80, (71 to 79)
o
o
A vertical drawing is two o's. If o = 1, it means 2
oo
Horizontal drawing is 11 o, such as 11, 22

It is known that a * 6 / 5 = 9 / 10 * b = 13 / 13 * C, and ABC is not equal to 0. Let's arrange the three numbers ABC in the order from large to small

Let their values be equal to 1, then a = 5 / 6, B = 10 / 9, C = 1, so b > C > a

It is known that ax 3 / 7 is equal to 9 / 10, XB is equal to 13 / 13 XC (and ABC is not zero). Which of the three numbers is the largest?

a＞b＞c

A * 3 and one-third = 11 / 12 * b = 15 / 15 * C, and a, B, C are not equal to 0. It is necessary to arrange a, B, C from large to small

b>c>a
15 / 15 times C can be regarded as C. let C = 1
If 4 / 3 is greater than 1, make a multiply 4 / 3 equal to 1, then a is less than 1
If 11 / 12 is less than 1, B is greater than 1

ABC three numbers get together. A says the quotient between me and B is 2 / 3, B says 80% of my C, and C says what is the quotient between me and a? Do you know which of the three numbers is the biggest?
Please explain why it's better to add notes

A says that the quotient between B and I is 2 / 3, and a / B is 2 / 3,
B also said that 80% of my C, B = C * 80%,
A is less than B, B is less than C,
C is the largest of the three numbers

A + B + C = 80 A: B: C = 5:7:4 find ABC

Let ABC be 5x, 7x and 4x respectively
5X+7X+4X=80
16X=80
X=5
A=5*5=25
B=5*7=35
C=5*4=20

In triangle ABC, if angle a is equal to 100 ° angle B-angle C is equal to 30, then how many degrees is angle B equal to

It is known that a × 5 / 3 = B × 90% = C ／ 75% = D × 4 / 5 = e ／ 6 / 5?

A

Among the five numbers of ABCDE, a is bigger than B, C is bigger than D, but smaller than e, D is bigger than B, e is smaller than A. These five numbers are arranged from big to small

A>E>C>D>B

Given that a = B × 4 / 5 = C × 75% = D △ 5 / 6 = e △ 6 / 5 (a ≠ 0), the abcdes are arranged in the order from small to large

A=B×4/5=C×75%=D÷5/6=E÷6/5
Namely
A×1=B×4/5=C×3/4=D×6/5=E×5/6
because
6/5>1>5/6>4/5>3/4
therefore
D