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Travka [436]
2 years ago
5

Simplify to create an equivalent expression: -2r + 7(-2n - 3)

Mathematics
1 answer:
Andrew [12]2 years ago
4 0

Answer:

-14n - 2r - 21

Step-by-step explanation:

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Can somebody help me. i don't know if these are right or wrong. If they're wrong can you please correct me? appreciate it​
notsponge [240]

Step-by-step explanation:

it is right

all are right

3 0
3 years ago
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If $20,900 is invested at an interest rate of 8 percent per year, find the value of the investment at the end of 5 years for the
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Answer:

annual

Step-by-step explanation:

You make a single deposit of $100 today. It will remain invested for 4 years at 8% per year compounded annually. What will be the future value of your single deposit at the end of 4 years?

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3 years ago
miss watson runs a distance of 200m in 25 seconds work out the average speed of miss watson in metres per second
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4 0
2 years ago
Ms. Moran has started an investment club at BSS. $8000 is invested, some at 10%
labwork [276]
The answer can be readily calculated using a single variable, x:

Let x = the amount being invested at an annual rate of 10%
Let (8000 - x) = the amount being invested at an annual rate of 12%

The problem is then stated as:

(x * 0.10) + ((8000 - x) * 0.12) = 900
0.10(x) + ((8000 * 0.12) - 0.12(x)) = 900
0.10(x) + 960 - 0.12(x) = 900
0.10(x) - 0.12(x) = 900 - 960
-0.02(x) = -60
-0.02(x) * -100/2 = -60 * -100/2
x = 6000 / 2
x = 3000

Thus, $3,000 is invested at 10% = $300 annually; and $8,000 - $3,000 = $5,000 invested at 12% = $600 annually, which sum to $900 annual investment.
6 0
2 years ago
PLEASE HELP I HAVE 20 MINS TO TURN THIS IN AND I HAVE 3 QUESTIONS LEFT:
dlinn [17]
The answer is 360 miles since he can drive 60 miles per hour so just multiply 60x6 and your answer is 360
3 0
2 years ago
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