Answer: 21
Step-by-step explanation:
9x7=63
63/3=21
2/3
Step-by-step explanation:
10a + 10b = 30
9x - 9y = 45
(10a+10b)/(9x-9y)
=30/45
=6/9
=2/3
Answer: 426.5
Step-by-step explanation:
You know that she spent 34.12 on gas and you also know that that amount of money was the 8% of her paycheck.
Therefore, keeping the above on mind, you can write the following expression, where 
is the total amount of money of her paycheck:
When you solve for , you obtain the result shown below:
Answer:
1715 metros
Step-by-step explanation:
Lo que debemos hacer es calcular la distancia del primer y del segundo eco.
Debemos conocer la velocidad del sonido que en términos generales es 343 m/s, por lo tanto, la distancia sería igual a:
v = d/t => d = v*t
d1 = 343*2 = 686 metros
d2 = 343*3 = 1029 metros
La separación sería la suma de ambas distancias así:
686 + 1029 = 1715
1715 metros sería la distancia de separación entre ambas montañas.
Half dollar = 50
quarter=25
dime=10
nickel=5
penny=1
what are you trying to find out ? im lost
