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MariettaO [177]
3 years ago
12

+ Extra points, and I will give BRAINLIEST to the first person to get this question right.

Mathematics
1 answer:
Scrat [10]3 years ago
3 0
X = -15

14(-15) + 6
-------------- = - 68
3

-8 + 4(-15) = - 68

So, -3(-15)² - 7 = -682

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PROBLEM #1
lesantik [10]

Answer:

  • 500 - 25w ≥ 200

Explanation:

Translate every verbal statement into an algebraic statement,

<u>1. Keith has $500 in a savings account at the beginning of the summer.</u>

  • Initial amount: 500

<u>2.  He wants to have at least $200 in the account by the end of summer. </u>

<u />

  • Final amount ≥ 200

<u>3. He withdraws $25 a week for his cell phone bill.</u>

<u />

  • Call w the number of weeks
  • Withdrawls = 25w

<u>4. Write an inequality that represents Keith's situation.</u>

  • Create your model: Final amount = Initial amount - withdrawals ≥ 500

  • 500 - 25w ≥ 200

With that inequality you can calculate how many week will pass before his account has less than the amount he wants to have in the account by the end of summer:

  • 500 - 200 ≥ 25w
  • 300 ≥ 25w
  • 300/25 ≥ w
  • 12 ≥ w
  • w ≤ 12

That represents that he can afford spending $ 25 a week during 12 weeks to have at least $ 200 in the account.

8 0
3 years ago
Help pls also show work if needed!
neonofarm [45]

Answer AND Step-by-step explanation:

Everything is in the picture.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

<em><u></u></em>

<em><u></u></em>

<u>The equation is:</u>

<u />c = -\frac{1}{2} t + 6<u />

5 0
3 years ago
20 points
kodGreya [7K]

Answer:

a) x=0, x=-10, x=11

Step-by-step explanation:

Just find the x- coordinates for when f(x) intersects g(x).

5 0
3 years ago
If the Laffite family deposits $8500 in savings account at 6.75% interest, compounded continuously, how much will be in the acco
vitfil [10]

Answer:

Option b

Step-by-step explanation:

We have a compound interest problem. With an annual interest rate of 0.675 and an initial payment of 8500, with t = 25 years

Then you must use the annual compound interest formula, which is represented by a growing exponential function:

y = e ^{ht}

Where:

h is the interest rate of 0.675

y is the money in the savings account as a function of time

Then substitute the values in the formula and we have:

y = e ^{0.675(25)}

y = 45,950.57

4 0
3 years ago
Can u help me with this please
luda_lava [24]
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7 0
2 years ago
Read 2 more answers
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