I believe the answer is C. third choice
<span>f(x) ≥ 0 over the interval [–1, 1].</span>
Answer:
x = -16
Step-by-step explanation:
Set -2x - 12 = to 20 and solve for x:
Adding 12 to both sides, we get -2x = 32, so that x = -16
So, first Andre is starting with 100 dollars in his savings account. Every week, he adds 5 dollars. And Elena starts with 10 dollars and adds 20 dollars per week.
1. Solve what Andre did.
$5 multiplied by 4 weeks = $20. So, $100 + $20 = $120.
2. Solve what Elena did.
$20 × 4 weeks = $80. $10 from her savings account + $80 = $90
3. So, Andre has more money because he started with $100, which is lots of money. And Elena only started with $10. So, Andre has $30 more than Elena.
4. For Part B, you have to count how many weeks in order for both of them to have the same amount of money left in their savings account.
5. Since Andre gets $5 a week, he can get at least 2 weeks and get $130. And for Elena, she would have to do 2 weeks also. For now she has $90, but for two weeks would be $130.
Answer for Part B: Each of them would have to do 2 weeks to get the same amount. (Which is 4 weeks)
Answer:
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Step-by-step explanation:
