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elena-14-01-66 [18.8K]
3 years ago
11

What is this 5n+6+(−7n)

Mathematics
2 answers:
LenaWriter [7]3 years ago
8 0

Answer:

4n

Step-by-step explanation:

1. -7n-5n= -2n

2. -2n + 6= 4n

monitta3 years ago
4 0

Answer:

-2 + 6

Step-by-step explanation:

Hopefully I helped :) Sorry if i didn't atleast i tried !

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Splitting investments. Joan had $3,000 to invest. She invested part of it in an investment paying 8% and the remainder in an inv
loris [4]

Answer:

Step-by-step explanation:

From the given information:

Let assume that the invested amount in the investment paying 8% interest is a

Now, since the total amount invested = $3000.

Then, the amount invested in the investment that will be paying 10% interest can be represented as:

= $(3000-a)

Income earned on $a that is being invested in 8% interest = $a × 8/100 = $0.08a

Income earned from $(3000-a)  in the 10% investment is:

= $(3000-a)× 10/100

= $(300 - 0.1a)

Since total income of the two investment = $290;

Then;

0.08a + (300 - 0.1a) = 290

0.08a + 300 - 0.1a = 20-

300 - 0.02a = 290

-0.02a = -10

a = -10/-0.02

x = 500

Thus;

the amount invested in an investment paying 8% interest = $500

the amount invested in an investment paying 10% interest = $(3000 - 500) = $2500

4 0
3 years ago
How much interest is earned on a principal of $671.37 invested at an interest rate
Aneli [31]

Answer:

$26.8548

Step-by-step explanation:

7 0
4 years ago
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If x2 = 50, what is the value of x? (3 points)
kkurt [141]

Answer:

plus or minus square root 50

Step-by-step explanation:

x^2 = 50

Take square root of both sides

x = +/ - √50

Answer:

plus or minus square root 50

5 0
4 years ago
Lexi needs to buy 105 vases for a party each package has 6 vases how many packages should lexi buy
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They should buy 18 packages because 105 ÷ 6 is 17 with 3 left over. They should get another box because there is 3 left over vases that they wouldnt use
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Which is an x-intercept of the continuous function in the
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Answer:

The x-intercept is (3,0)

Step-by-step explanation:

Hopefully this was helpful!:)

8 0
4 years ago
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