Let's solve the equation given in the image:
1. Solve the Equation:
[ x : 8 = 15 : 30 ]
This can be rewritten in fractional form:
[ \frac{x}{8} = \frac{15}{30} ]
Simplify (\frac{15}{30}) to (\frac{1}{2}):
[ \frac{x}{8} = \frac{1}{2} ]
Cross-multiply to solve for (x):
[ 2x = 8 ]
Divide both sides by 2:
[ x = 4 ]
2. Task Overview:
1. Find the value of the expressions:
a. ( \frac{3.6}{0.45} = 8 )
b. ( \left(\frac{2}{4} + \frac{2}{3}\right) \div \frac{3}{4} = \frac{2}{1} = 2 )
2. Find the value of the expressions:
a. ( 1.2, 0.6, 0.2, 0.4 )
(Note: The problem seems to involve finding or calculating values, but details are incomplete.)
3. Find the value of the expressions:
Given expression: (\frac{x}{2.7 - 1.4} = \frac{42.6 - 3.6}{39.3})
When ( x = 13 - 3.9 )
These problems involve simplifying expressions and substituting values as needed. If you need a specific calculation, please clarify.
