If a divided by 4 equals B multiplied by 5, how much is a equal to B

If a divided by 4 equals B multiplied by 5, how much is a equal to B

A/4=B/5
5A=4B
A/B=4/5
If you are satisfied with my answer, please click the answer button below my answer

Calculation: 1 / 2 × 4 + 1 / 4 × 6 + 1 / 6 × 8 + 1 / 8 × 10 + 1 / 10 × 12
To process and answer (detailed) good words give more points!

1/2×4=1/2(1/2-1/4)
Others are the same
1/2×4+1/4×6+1/6×8+1/8×10+1/10×12
＝1/2（1/2-1/4+1/4-1/6+1/6-1/8+1/8-1/10+1/10-1/12）
＝1/2（1/2-1/12）
＝5/24

1 / 2 + 1 / 4 + 1 / 6 + 1 / 8 + 1 / 10 + 1 / 12.1/9900?

Original formula = 1 / (1 * 2) + 1 / (2 * 3) + 1 / (3 * 4) + 1 / (4 * 5) + 1 / (5 * 6) + 1 / (6 * 7) + 1 / (7 * 8) + 1 / (8 * 9) + 1 / (9 * 10)
=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+.+1/9-1/10
=1-1/10
=0.9

As shown in the figure, in the rectangular coordinate system, the rectangular oabc is folded along ob, so that point a falls at point A1. Given OA = √ 3, ab = 1, then the coordinate of point A1 is____

As shown in the figure, in the rectangular coordinate system, the rectangular oabc is folded along ob, so that point a falls at point A1. Given OA = √ 3, ab = 1, then the coordinate of point A1 is__ (1,0)__
The midpoint ((x + 0) / 2, (y + √ 3) / 2) is the point (1 / 2, √ 3 / 2)
∴x=1;y=0;
I'm very glad to answer your questions. Skyhunter 002 will answer your questions
If you don't understand this question, you can ask,

How to solve the equation of 10x + 8 = 12x-1?

10x+8=12x-1
10x-12x=-1-8
-2x=-9
x=-9÷（-2）
x=4.5

If the point P (1,2) is on the ellipse and the sum of the distances between the two focal points of the cutter is 10, then the standard equation of the ellipse is obtained

Let the elliptic equation be X & # 178 / / A & # 178; + Y & # 178 / / B & # 178; = 1. According to the definition of ellipse, the sum of the distances from the point P on the ellipse to the two focal points is the major axis of the ellipse. Therefore, a = 5, so the elliptic equation is X & # 178 / / 25 + Y & # 178 / / B & # 178; = 1 because the point P (1,2) is on the ellipse, so 1 / 25 + 4 / B & # 178; = 14 /

The solution equation: (1) 2x-3 of X + 3-2x of 5 = 4 (2) x-4 of 3-x + 4-x of 1 = 1 (3) X-1 of 2x-3 = 2x + 3 of 2X-4 + 1

(1)x=1 (2)x=3 (3)x=2

Ask 4 √ 3 × cos30 & # 186; =

6 qin~~~~

8 (X-7) = 18 (X-12) how to solve this equation

8(x-7)=18(x-12)
8x-56=18x-216
18x-8x=216-56
10x=160
x=160÷10
x=16

12 decimeters = fractions of meters
36 seconds = fraction of a fraction

12 decimeters = 1.2 meters = 6 / 5 meters
36 seconds = 0.6 minutes = 3 / 5 minutes