We can find the value of x through a proportion. Since these two triangles are similar, their sides are in proportion.
4 is to 12 as 5 is to x
Remember to say 12, not 8! 8 is only part of the whole side. We can also simplify 4 is to 12 to 1 is to 3.
1/3 = 5/x
Cross multiply
x = 15
Hope this helps!
14 - x = 21
First, subtract 14 from both sides. / Your problem should look like: -x = 21 - 14
Second, simplify 21 - 14 to get 7. / Your problem should look like: -x = 7
Third, multiply both sides by -1. / Your problem should look like: x = -7
Answer: x = -7
24/5 ÷ 6/15
= 24/5 × 15/6
= 360/30
= 12
Answer:
i did.
Step-by-step explanation:
Separating variables, we have
Integrate both sides.
Given that 
, we find
Then the particular solution is
and because , we take the negative solution to accommodate this initial value.
