N+2n+20-4=12+3n
3n+20-4-12=12-12+3n
3n+4=3n
3n/3 + 4= 3n/3
n+4=n
n+4-4=n-4
n=n-4
theres no further simplification, unless i messed up ...
Answer:
2 hours
Step-by-step explanation:
Let's denote the amount of time we need to find out, t.
=> 600 + 50t < 500 + 100t
or 600 - 500 < 100t - 50t
or 100 < 50t
or 100/50 < t
or t > 2
=> After 2 hours, company B will be cheaper option than company A
Answer: 3•3•3•5•7
Step-by-step explanation:
Create a factor tree. See photo attached. (:
Answer: C
Step-by-step explanation: i’m doing the test too
Answer:
40 %
Step-by-step explanation:
30/85 = .4
.4 × 100 = 40 %