Answer:
The table C
Step-by-step explanation:
when you multiply the x number in the table c by 0.3 you get the same answer as the one in the y column. The constant of proportionality is the value that stays constant in the ratio. Since when you multiply each number in the x column by 0.3 and you always get the number in the y column it shows that the table c is correct.
Respuesta: 4.5 pies que puede comprar si tiene $ 11.25
Explicación paso a paso:
Dado que hemos dado que
Costo de los dulces por pie = $ 2.50
Dinero total que gastó en dulces = $ 11.25
Sea x el número de pies que puede comprar
Ahora, según la pregunta, obtenemos eso,
Entonces, 4.5 pies que puede comprar si tiene $ 11.25.
Answer: at 50 mph, she drove for 4 hours.
at 45 mph, she drove for 2 hours.
Step-by-step explanation:
Let t represent the time that she spent driving at 50 miles per hour.
Taylor took 6 hours to drive home from college for Thanksgiving break. This means that the time that she spent driving at 45 miles per hour is (6 - t) hours.
Distance = speed × time
Distance covered while driving 50 miles per hour is
50t
Distance covered while driving 45 miles per hour is
45(6 - t)
Since the total distance that she drove is 290 miles, it means that
50t + 45(6 - t) = 290
50t + 270 - 45t = 290
50t - 45t = 290 - 270
5t = 20
t = 20/5 = 4
At 45 miles per hour, she drove at
6 - 4 = 2 hours
T= total cost
n= number of days
Total cost equals the cost per day times the number of days plus the fee.
T= $39n + $65
substitute 5 for n
T= 39(5) + 65
T= 195 + 65
T= $260 total cost
Hope this helps! :)
I was really scared when I first looked at this ... I thought it was gonna
keep going to infinity, and I don't know how to handle those.
But this fraction only has 2 or 3 levels to it, so I think we can do it without
too much trouble.
The secret is: You definitely have to start at the bottom and work
your way up.
-- See the bottom level ? It's 2 + 1/3 .
-- Change that number all to an improper fraction, and it's 7/3 .
The reason I want to do that is because it's the denominator of the
next fraction up, and that fraction is (1 over it).
-- The denominator of the next fraction up is 7/3, so 1 over it is just 3/7.
-- Now, before we go up to the top level, it looks like we're supposed to
add the big black ' 1 ' to where we are now ... to the 3/7 .
' 1 ' = 7/7 . Add that to the 3/7, and we have 10/7 .
All we have left now, out of the whole pile, is (1 over 10/7).
And that's just <em>7/10</em>.
