answer:
338 out of 520
step by step:
13 out of 20 dont favor mystery
13:20
? :520
520÷20=26
13×26= 338
338 students out of 520 do not favor mysteries
Answer:
C, -50*hours+475
Step-by-step explanation:
We are trying to get the total distance left, so we are subtracting the distance traveled from the total. If we travel at 50 miles per hour then the distance traveled is equal to 50*hours and if you subtract that from the total you ahve the distance left.
Answer:
John and Mike are correct, Henry is incorrect.
Step-by-step explanation:
Try to find x = 4 for all the equations to find out who is correct.
John:
4x + 4 + 7x = 48
Combine like terms.
11x + 4 = 48
Subtract 4 from both sides.
11x = 44
Divide both sides by 11.
x = 4
John is correct.
Mike:
2x + 3 = 11
Subtract 3 from both sides.
2x = 8
Divide both sides by 2.
x = 4
Mike is correct.
Henry:
8x + 7 = 71
Subtract 7 from both sides.
8x = 64
Divide both sides by 8.
x = 8
Henry is incorrect.
Answer:
(a)
The quantity of element that are still contained in the stolen rock
is 37.1627g
(b)
this rock can be used by the superhero's nemesis to render the superhero powerless is 567 years
Step-by-step explanation:
We are given
original quantity =250g
half life time =200 years
so, we can use formula
where
Po is initial quantity
h is half life time
t is time in years
so, we can plug h=200 and Po=250
and we get
(a)
we can plug t=550
and then we can find P(t)
we get
(b)
we can set P(t)=35
and then we can solve for t
we can take ln on both sides
years
Answer:
14.42 units
Step-by-step explanation:
with segments most of the time if one is negative and one is positive you can ignore the minus sign and add them
