Answer:
Step-by-step explanation:
X= Fred
56=x+3x
56=4x
Divide both sides by 4
56/4=14
Fred had 14 points and Phil had 42
Check: 14+42=56
Answer:
?
Step-by-step explanation:
Answer:
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Step-by-step explanation:
We know that
half life time of C-14 is 5730 years
so, h=5730
now, we can use formula

we can plug back h
and we get

An old bone contains 80% of its original carbon-14
so,
P(t)=0.80Po
we can plug it and then we solve for t





So,
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Answer:
7 + p
Step-by-step explanation:
Solve:
7 - 3p + 4p
Simplify using like terms
Wrote problem using addition
7 + ( -3p + 4p)
7 + 1p or 7 + p
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-Chetan K
Answer:
Step-by-step explanation:
1. 6*6 + 6*12
= 36 + 72
= 108.
2. 3*5 + 3*5 + 3*14
= 15 + 15 + 42.
= 72.
3. 10*4 + 1/2 * 4*4
= 40 + 8
= 48.
4. 12*6 + 1/2 * 12 * 3
= 72 + 18 = 90.