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Dimas [21]
3 years ago
8

Is the ordered pair a solution of the equation? y= 3x + 4; (4, 16)

Mathematics
1 answer:
Furkat [3]3 years ago
6 0

Answer: Yes.

Step-by-step explanation: Plug in your values. Does y=16 when x=4? 16 = 3(4) +4, which equals 16, so yes.

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Q9.
svet-max [94.6K]

After solving simultaneously we found the values for x and y are

2.76 and 5.65 respectively

<h3>Simultaneous Equations</h3>

We have the following two expressions

7x – 2y = 34 --------1

3x + 5y = -3 ---------2

Multiply 1 by eqn 5 and eqn 2 by 2

35x - 10y = 170-------3

6x + 10y = -6 ----------4

subtracting 4 from 3 we have

29 x= 164

divide both sides by 29

x = 164/29

x = 5.65

Put x = 5.65 in eqn 1 to find y

7*5.65 – 2y = 34

39.55 - 2y = 34

39.55-34 = 2y

5.55 = 2y

divide both sides by 2

x = 5.55/2

x = 2.76

Learn more about simultaneous equations here:

brainly.com/question/16863577

8 0
2 years ago
The width of a rectangle is 4 inches less than its length. The perimeter of the rectangle is 12 inches what is the width
Snezhnost [94]
Let the length is x and the width is y
x - y = 4 .........(1) 2x + 2y = 12
x + y = 6........(2) 
by adding 1 and 2 
2x =10 , x = 5 
y = 1 inch

3 0
3 years ago
Evaluate the limit. lim x-positive infinity 8n^2 +5n +2/3+2n
Zolol [24]

Answer: 3

Step-by-step explanation:

So in summary, if the highest degree in the numerator and denominator equal, you can use the coefficients to determine the limit, if the highest degree in the numerator is larger than the highest degree of the denominator, the limit will be infinity.

5 0
3 years ago
Joe needs to get to his house,which is 106 miles away in 2 hours.How fast does he need to drive
kirza4 [7]

Answer:

53

Step-by-step explanation:

106 miles per hour would get him home in 1 hour but it takes 2 hours so you can divide 106 by 2 to 53 miles per hour.

8 0
3 years ago
Read 2 more answers
Zack’s Italian Pizza Bar baked 2,000 pizzas in the first year that they were open. In the second year, they baked 3,000 pizzas a
valentina_108 [34]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of years, where x = 0 represent the first year. Let y represent the number of pizzas baked.

In the first year(i.e. at x = 0), 2000 pizza was baked. This can be represented by (0, 2000).

In the second year(i.e. at x = 1), 3000 pizza was baked. This can be represented by (1, 3000).

In the third year(i.e. at x = 2), 4000 pizza was baked. This can be represented by (2, 4000).

Therefore, the relationship between x and y is given by:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)

Using the points (0, 2000) and (2, 4000):

y-2000=\frac{4000-2000}{2-0} (x-0)\\\\y-2000=1000x\\\\y = 1000x+2000

7 0
3 years ago
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