Make a proportion of corresponding sides
Side AU corresponds to Side AB
Side UV corresponds to Side BC
Find AB by adding AU and UB
AU = 20x + 108
UB = 273
AB = 20x + 381
Make proportion
AU/AB = UV/BC
20x + 108/ 20x + 381 = 444/ 703
Cross Multiply
(20x + 108)(703) = (20x + 381)(444)
14,060x + 75,924 = 8,880x + 169,164
Solve for x
14,060x + 75,924 = 8,880x + 169,164
I'm sure you can figure this out
Let
x--------> the time in hours
y-------> the distance in miles
we know that
The speed is equal to

in this problem


<u>Equation First Train</u>

<u>Equation Second Train</u>

---------> equation 
Substitute the values of
and
in the equation 

Solve for x


therefore
<u>the answer is</u>

Answer:
n<3
Step-by-step explanation:
2(8 +3n) < 34
16 + 6n < 34
6n < 34-16
6n < 18
n < 3
make a point 4 lines above 0,0. from here, make a point 6 spaces right and 7 spaces up. from 0,4 make another point 6 spaces left and 7 spaces down. connect them with a straight edge and draw a line connecting them.
the points will be:
-6,-3
0,4
6,11
Answer:
1. 3.2 x 10^4
2. 6 x 10^4
3. 1.04 x 10^5
4. 1.82 x 10^7
5. 9.23 x 10^6
6. 4.05 x 10^5
7. 2.019 x 10^3
8. 3.02 x 10^4
Step-by-step explanation:
Next time don't randomly comment on other people's questions to get points without putting in the effort. Spread credibility, not liability. Do the rest by yourself; there are multiple resources online that you can learn from!