Answer:
n = -4
Step-by-step explanation:
2 - 1/2 n = 3n + 16
Combine the constants by subtracting 2 from both sides.
-1/2n = 3n + 14
Combine the variable by subtracting 3n from both sides.
-7/2n = 14
Multiply both sides by 2 to simplify the fraction.
-7n = 28
Isolate n by dividing by -7 on both sides.
n = -4
Check.
2 - 1/2(-4) = 3(-4) + 16
2 + 2 = -12 + 16
4 = 4
Your answer is correct.
Rate of 3 every 10 minutes.
In 10 minutes there are 3 buses.
In 1 minute it is (3/10). For 1 hour = 60 minutes.
For 60 minutes = 3/10 * 60 = 18.
18 buses.
Answer:
-1000
Step-by-step explanation:
1. Do the Parenthesis problem first. (PEDMAS/PEMDAS)
You should then have -10^3
2. Solve with the exponent. (-10 x 10 x 10)
You should then get your final answer, which is -1000.
Any Questions/Concerns?
She saves 10 per week.......after 4 weeks, she had 90
so if she started with nothing, after 4 weeks she would have 40.....but for her to have 90, she would have had to have started with (90 - 40) = 50.
Think about it....she starts with 50....and then saves 10 for 4 weeks giving her 40......and now she has 40 + 50 = 90
so ur answer is : Roberta had $ 50 before she started to save money each week
