Question

1) 4/a= 16/20 2) c/8 =25/40 3) 39/27 = б/9 4) 49/32 =12/д

Answer 1

Пошаговое объяснение:

4/а = 16/20

16 * а = 20 * 4

16а = 80

а = 80 : 16

а = 5

с/8 = 25/40

40 * с = 25 * 8

40с = 200

с = 200 : 40

с = 5

39/27 = в/9

27 * в = 39 * 9

27в = 351

в = 351 : 27

в = 13

49/32 = 12/д

49 * д = 32 * 12

49д = 384

д = 384 : 49

д = 384/49

д = 7 41/49

Answer 2

To solve the given equations, we can follow a simple approach of cross-multiplication to find the values of the variables. Let's solve each equation step by step:

1. $\frac{4}{a} = \frac{16}{20}$

Cross-multiplying gives: $16a = 4 \times 20$ $16a = 80$

Dividing both sides by 16 gives: $a = 5$

2. $\frac{c}{8} = \frac{25}{40}$

Cross-multiplying gives: $40c = 8 \times 25$ $40c = 200$

Dividing both sides by 40 gives: $c = 5$

3. $\frac{39}{27} = \frac{б}{9}$

Cross-multiplying gives: $39 \times 9 = 27б$ $351 = 27б$

Dividing both sides by 27 gives: $б = \frac{351}{27} = 13$

4. $\frac{49}{32} = \frac{12}{д}$

Cross-multiplying gives: $49d = 12 \times 32$ $49d = 384$

Dividing both sides by 49 gives: $d = \frac{384}{49}$

So, the solutions for the equations are:

1. $a = 5$

2. $c = 5$

3. $б = 13$

4. $d = \frac{384}{49}$