Answer: 45 miles per hour
Step-by-step explanation:
Answer:
c/5-4
Step-by-step explanation:
distributive property rule is If a(b+c) then a*b+a*c
so we apply the rule to this expression
4/5*1/4c-4/5*5
we can write as
4 1 4 5
_ * _ c - _ * __ (remember PEM/D A/S Rule and multiply straight across)
5 4 5 1
4 20
_ c - __
20 5
simplify 4/20 as 1/4 and divide 5 from 20 you get 5
1
_ c -4 is the simplified expression
5
also written as c/5-4
Answer:
x=1/10
Y=5
Step-by-step explanation:
1/4x+2.5 =1/5x+ 3
x=1/10
Y=1/4×1/10+2.5
Y=5
×=1/10
Y=5
Answer: A=100(12)t5.27
Step-by-step explanation:
Assume / and ^ got lost from eqns.
A(t) = initial × (1/2)^(t/halflife)
So initial = 100, halflife = 5.27,
A=100(12)t5.27 means A=100(1/2)^(t/5.27)
so that A is 50 when t is 5.27