It is
The equation for area of a trapezoid is
Substituting our values in
We can then simplify the expression
Think: You're treating the numerator and the denom. in precisely the same way. In doing so you are NOT changing the value of the fraction, only the appearance.
Example: start with 2/3. Mult num. and den. both by 7: 14/21.
2/3 and 14/21 result in precisely the same decimal fraction, showing that the latter set of fractions is equivalent to the former set.
Answer:
35
Step-by-step explanation:
If they won 4/5 then they lost 1/5. If 1/5 is 7 then you need five 7s.
7 × 5 = 35
X + (x + 10) = 154
2 x + 10 = 154
2 x = 154-10 = 144
x = 72 (ans)
Not sure if it’s right
