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kifflom [539]
3 years ago
12

Sarah and her family just got back from vacation they had been travelling for 3 days driving 8 1/2 hours each day how many hours

altogether were there they in the car
Mathematics
1 answer:
sergeinik [125]3 years ago
6 0
3×8.5= 25.5 hours all together
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Find the ordered pair that makes both the equations below true
NNADVOKAT [17]

Answer:

(3, 1)

Step-by-step explanation:

(a) Algebraic solution

(1)  y = -⅔x + 3

(2) y =   2x  - 5

Set Equation (1) equal to Equation (2)

-⅔x + 3 = 2x - 5

Multiply each side by 3

-2x + 9 = 6x - 15

Add 15 to each side

-2x + 24 = 6x

Add 2x to each side

24 = 8x

Divide each side by 3

(3) x = 3

Substitute (3) into (2)

y = 2×3 - 5 = 6 - 5 = 1

The ordered pair that makes both equations true is (3, 1).

(b) Graphical solution

In the diagram below, the red line is the graph of Equation (1). The blue line is the graph of Equation (2). The point of intersection is at (3, 1).

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3 years ago
The following system has a solution of x = -5, y = 9, z = 11.
vitfil [10]

42

Step-by-step explanation:

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3 years ago
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goldenfox [79]

Answer:

81x^2+7x-16x-10

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3 years ago
3,760 divided by 145? Please hurry!! Last question on my worksheet!!!!!
igor_vitrenko [27]

Answer:

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DerKrebs [107]

Answer:

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Step-by-step explanation:

Since we need to find the first 5 values  we start with n = 1 to n = 5. Note that we don't start from n = 0 as the question states that  n ≥ 1.

For the first 5 values we just replace the value of n with 1, 2, 3, 4 and 5 and calculate the answer

The first five values are 12, 14, 16, 18 and 20

A recursive formula is one that

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b) provides a formula connecting the previous term to the existing term.

Since we know the first term is 12, i.e  and we know that the difference between consecutive terms is 2 we can conclude that the recursive formula is made up of the following two formulas

The over all formula is as follow

Step-by-step explanation:

Hope this helps:)

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