Answer:
Las ganancias totales de la empresa B en dicho año fueron de $51.532,90.
Step-by-step explanation:
Dado que una empresa A gana $42.758,35 en un año, y si la empresa B gastara $8.774,55 tendría tantas ganancias como la primera empresa, para determinar cuál es la ganancia total de la empresa B se debe realizar el siguiente calculo:
Ganancias B - 8.774,55 = 42.758,35
Ganancias B = 42.758,35 + 8.774,55
Ganancias B = 51.532,90
Por lo tanto, las ganancias totales de la empresa B en dicho año fueron de $51.532,90.
Since the formula for the volume of the cube is width*height*length, we know that 6*12*length=1242. Multiplying it out, we get that 72*length=1242. After that, we can divide 72 from both sides to get 1242/72=length=17.25 inches which I guess is close enough to 17?
ANSWER
Stacy's speed is 78 mph and Eric's speed is 41 mph.
EXPLANATION
Let Stacy's speed be x.
Let Eric's speed be y.
Stacy travels 4 mph less than 2 times as fast as Eric. This means that:
x = 2y - 4 ____(1)
After 6 hours, they are 222 miles apart. This means that:
Stacy's distance = d miles
Eric's distance = (d - 222) miles
Speed is given as distance divided by time.
So, for Stacy, after 6 hours:
x = d / 6
=> d = 6x
and
For Eric:
y = (d - 222) / 6
Cross multiply:
6y = d - 222
d = 6y + 222
Equate the two d's:
6x = 6y + 222
=> 6x - 6y = 238 ___(2)
We now have two simultaneous equations:
x = 2y - 4 ____(1)
6x - 6y = 222 ___(2)
Put (1) in (2):
6(2y - 4) - 6y = 222
12y - 24 - 6y = 222
6y - 24 = 222
Collect like terms:
6y = 222 + 24
6y = 246
y = 246 / 6
y = 41 mph
Recall that:
x = 2y - 4
x = 2(41) - 4
x = 82 - 4
x = 78 mph
So, Stacy's speed is 78 mph and Eric's speed is 41 mph.
It is 80%, because there is 6 dollars left, if that were a percentage it’d be 20%