Answer:
73.4 degrees
Step-by-step explanation:
en la primera
es -2x+7=13, suma 13 con 7 para q tengas 20 y el negativo dos x es la otra asi agarras -2=20 ahora dividelo los dos por 2 te sale 0 para el negativo dos y divide 20/2 son X=10
Distribute:
5x+20-4x=18-23
simplify:
1x+20=-5
subtract 20:
1x=-25
Answer x=-25
Answer:
the faster train = 137 mph
the slower train = 117 mph
Step-by-step explanation:
Givens
The distance travelled is 1270 km
The rate of one train = r
The rate of the other train = r - 20
The time to travel a total of 1270 miles is 5 hours.
Formula
d = r * t
5*r + 5*(r - 20) = 1270
Solution
5*r + 5*(r - 20) = 1270 Remove the brackets
5r + 5r - 100 = 1270 Add 100 to both sides
10r - 100 + 100 = 1270+100 Combine
10r = 1370 Divide by 10
r = 1370/10
r = 137
Answer:
If you want me to be honest with you, I will be. The reason black people got their skin color is really because someone was born with a lot of melanin, and what caused that was basically the region and climate the people are living in. People in Africa are most likely to be darker than those who live in Northern Europe.
Step-by-step explanation:
