72 cups (US Gallons)
1 gallon = 19.215 cups.
Answer:
El número resultante es 902 billones 43 mil millones. ()
Step-by-step explanation:
Antes de proceder a escribir a resolver este problema, debemos recordar las siguientes equivalencias:
<em>Una decena de millares de millón</em> - 10.000'000.000
<em>Una centena de billón</em> - 100'000.000'000.000
<em>Una unidad de billón</em> - 1'000.000'000.000
<em>Un millar de millón</em> - 1.000'000.000
El ejercicio consiste en sumar las cantidades dadas para obtener el total, es decir:
El número resultante es 902 billones 43 mil millones. ()
Answer:
Step-by-step explanation:
Change 2/5 to a decimal
2/5 = 0.4
Change 1 2/15 of a fluid ounce to a decimal.
1.133333
Set up your proportion.
0.4 / 1.133333 = x / 5 Cross multiply
0.4*5 = 1.133333*x
2 = 1.133333 x Divide by 1.1333333
2/1.33333 = x
x = 1.5 ounces.
He needs 1.5 ounces of red to make 5 ounces of purple.
2(j + 2 + j)
Twice the sum of 2 consecutive odd (or even) intergers.
or
3(2j + 9 + j)
Three times the sum of twice a number and 9 and a number
First we need to get some expressions:
"Four times the number of white marbles" = 4*w
"9 times the number of red marbles" = 9*r
"...exceeded...by 10": So 4*w is 10 more than 9*r or 4*w = 9*r +10
"ratio of blue marbles to red marbles is 3 to 1" : b/r = 3/1
b=3*r
"there is a total of 65 marbles": b+r+w=65
So our system becomes
b = 3*r
65 = b+r+w
4*w = 9*r+10
The first equation allows us to substitute immediately into the second equation so
65 = 4*r+w
however, we can divide the third equation by 4 to get w:
w = (9*r)/4+10/4
This can then be plugged into the second to get:
65 = 4*r+(9*r)/4+10/4 = (16*r)/4 + (9*r)/4+10/4 = (25*r+10)/4
260 = 25*r+10
250 = 25*r
r=10
Now we simply plug this result into the substitutions to get w and b:
w = 90/4+10/4 = 100/4 = 25
b=30
So there are 10 red marbles, 25 white marbles, and 30 blue marbles
Now it sounds like we should be picking some out at random ;)