Answer:
or
Step-by-step explanation:
we know that
One astronomical unit is about 93,000,000 miles
so
using proportion
Find out how many astronomical unit represent 20,000 miles
Let
x ----> the number of astronomical unit
simplify
or
To determine the expression that is equivalent to 8a + 20, all you have to do is find the common denominator and divide the values by it.
8a + 20
8a/4 + 20/4
4(2a + 5).
The correct solution would cue the second option - 4(2a + 5).
Answer:
Step-by-step explanation:
We are given a Triangle ABC , and DE││BC , where D and E lies on AB and BC Respectively. As DE││BC , ABC is similar to BDE. Hence the ratios of the respective sides will be equal . Hence
----------(A)
Given BD=2
BA=BD+AD=2+7=9
DE=3
Putting these values in (A)
Simplify the equation with pemdas
first parentheses
distributive property
a(b+c)=(ab)+(ac)
(5y+2)2=(10y)+(4)
10y+4-96=0
10y-92=0
add 92 to both sides
10y=92
divide both sides by 10
y=9.2