Answer:
i think its 33
Step-by-step explanation:
10 Girls came by Car, 20 Girls came by bicycle.
19 Girls walked.
16 boys walked, 21 boys came with bicycle.
14 boys walked.
In total 33 students walked
Answer:
y = x + 6
Step-by-step explanation:
y = x + b
when x = 0, y = 6. so....
6 = (0) + b
6 = b
so, y = x + 6
Answer:
x = 1
Step-by-step explanation:
Triangle ABC is congruent to Angle DEF
13x - 12 = 7x - 6
6x = 6
x = 1
Answer:
- 32,283 years old
- 31,718 years old
Step-by-step explanation:
If h is the half-life of the radioactive substance, then the proportion remaining after t years is ...
k = (1/2)^(t/h)
We can find the value of t using logarithms:
log(k) = (t/h)·log(1/2)
t = h·log(k)/log(1/2)
__
a) For k = 2% and h = 5720 years, we have ...
t = 5720·log(.02)/log(.5) ≈ 5720·5.64386
t ≈ 32,283 . . . . years old
__
b) For k = 2% and h = 5620 years, we have ...
t ≈ 5620·5.64386 ≈ 31,718 . . . . years old
_____
Note the proportionality of age to half-life. Once we found the multiplier corresponding to 2% remaining, we can use that for any estimate of the half-life.
Answer:
a = (327u) - 377
Step-by-step explanation:
hope that's correct bc if it isnt it would be pretty embarrassing ngl
