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Pepsi [2]
3 years ago
9

Help Please!!!!! Evaluate the expression when n = 4 2n-7

Mathematics
2 answers:
Montano1993 [528]3 years ago
7 0
2•4= 8 8-7= 1
The answer is 1
crimeas [40]3 years ago
6 0

Answer:

the answer is 1.

Step-by-step explanation:

4 is equal to n so it would look like 24-7 but you have to multiply 2 and 4 which is 8. Then, you do 8-7 which is 1. hope this helped.

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(NEED THE ANSWER AS SOON AS POSSIBLE)
Naya [18.7K]

Answer: 42 - 8x

Step-by-step explanation:

Here is the complete question:

Jessica had $15. She bought 3 apples for x dollars each. Levi had $27 and bought 5 apples for x dollars each. Which expression represents how much money both Jessica and Levi have left altogether?

Select one:

27 – 5x

42 – 8x

12 – 2x

39 – 3x

From the question, Jessica had $15. She bought 3 apples for x dollars each. This means she had:

15 - (3 × x) = 15 - 3x

Levi had $27 and bought 5 apples for x dollars each. Levi will have:

27 - (5 × x) = 27 - 5x

The amount they'll have altogether will be the addition of their amount left. This will be:

15 - 3x + 27 - 5x

= 15 + 27 - 3x - 5x

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5 0
3 years ago
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pishuonlain [190]

Answer:

Clyde is 49.74 away from the harbor

Step-by-step explanation:

Here in this question, we are interested in knowing the distance of Clyde from the harbor.

The key to answering this question is having a correct diagrammatic representation. Please check attachment for this.

We can see we have the formation of a right angled triangle with the distance between Clyde’s ship and the harbor the hypotenuse.

To calculate the distance between the two, we shall employ the use of Pythagoras’ theorem which states that the square of the hypotenuse is equal the sum of the squares of the two other sides.

Let’s call the distance we want to calculate h.

Mathematically;

h^2 = 25^2 + 43^2

h^2 = 625 + 1849

h^2 = 2474

h = √2474

h = 49.74 miles

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Step-by-step explanation:

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Step-by-step explanation:

By sum of angles on a straight line = 180°,

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