Question

I’ll give brainliest if you explain how to do 1 2 and 3:) no links plz!

Answer 1

Answer:

Step-by-step explanation:

1) $\frac{5}{7}x = 55$

Multiply both sides by 7,

$7*\frac{5}{7}x=55*7$

$5x = 55 * 7$

Now divide both sides by 5

$\frac{5}{5}x=\frac{55*7}{5}\\\\x = 11*7\\\\x = 77$

ANS: x = 77

2) 6x = 1/5

Divide both sides by 6

$\frac{6}{6}x=\frac{1}{5*6}\\\\x = \frac{1}{30}$

3) 2.17 + x = 5

Subtract 2.17 from both sides

2.17 - 2.17 +x = 5 - 2.17

x = 2.83

$4) \frac{20}{3}=\frac{10}{9}x$

Multiply both sides by 9

$\frac{20}{3}*9=\frac{10}{9}x*9\\\\20*3=10x$

Divide both sides by 10

$\frac{20*3}{10}= \frac{10}{10}x\\\\2*3 = x\\\\x = 6$

Answer 2

Answer:

5/7 =55

5x/7 =55

7 ⋅ 5x/7 = 7 ⋅ 55

5x =  7⋅ 55

x= 77

1/5/6 = 6x/6

x= 1/30

x+ 2.17 = 5

x+ 2.17 = 5 - 2.17 = 5 - 2.17

x=2.83

Step-by-step explanation: