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soldi70 [24.7K]
3 years ago
10

Help 1 and 4 fast please

Mathematics
1 answer:
AlekseyPX3 years ago
3 0

Answer:

1)

\leq : Less than or equal to\\\geq :Greater than or equal to\\:greater than

Step-by-step explanation:

N/A

also what is your inequality problem

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5 0
3 years ago
Tamara invests $8000 in two different accounts. The first account has a simple interest rate of 3% and the second account has a
Paraphin [41]

Answer:

  • $3200 at 3%
  • $4800 at 2%

Step-by-step explanation:

Interest earned is proportional to the interest rate, so if the interest earned is the same, the amounts invested must be inversely proportional to the interest rates. That is, for the 3% and 2% accounts, the ratio of money invested is 2:3.

In other words, 2/5 of the money ($3200) was invested at 3%, and 3/5 of the money ($4800) was invested at 2%.

_____

If you need an equation, you can let x represent the amount invested at the highest rate. Then 8000-x is the amount invested at the lower rate. For the interest in the two accounts to be equal, we have ...

  3%·x = 2%·(8000-x) . . . . . the amounts of interest earned are the same

  3/2·x = 8000 -x . . . . . . . . divide by 2%

  5/2·x = 8000 . . . . . . . . . . . add x and simplify

  x = 8000·(2/5) = 3200  . . . multiply by the inverse of the x coefficient

  8000-x = 8000 -3200 = 4800 . . . . the amount invested at the lower rate

Tamara invested $3200 in the 3% account and $4800 in the 2% account.

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She earned $96 in each account for the year.

8 0
3 years ago
Find the m∠DCA A. 10 B. 29 C. 116 D. 40
Blizzard [7]
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marin [14]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

\frac{1}{2}s=\frac{7}{2}

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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