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Eddi Din [679]
3 years ago
5

Pls help me!! Which two equations are equivalent? y= 1/2x+3 y=x+6 2y=x+6

Mathematics
2 answers:
tia_tia [17]3 years ago
5 0

Answer:

the first and last equation

Step-by-step explanation:

Zigmanuir [339]3 years ago
4 0

Answer:

first and third

Step-by-step explanation:

Consider

y = \frac{1}{2} x + 3 ( multiply through by 2 )

2y = x + 6 ← third equation

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The monthly charge for a waste collection service is 1830 dollars for 100 kg of waste and 2460 dollars for 135 kg of waste. (a)
Ulleksa [173]

Answer:

C=18w+30

Step-by-step explanation:

We are given that The monthly charge for a waste collection service is 1830 dollars for 100 kg of waste

So, (x_1,y_1)=(100,1830)

We are also given that The monthly charge for a waste collection service is 2460 dollars for 135 kg of waste.

So, (x_2,y_2)=(135,2460)

We are supposed to find a linear model for the cost, C, of waste collection as a function of the number of kilograms, w.

So, we will use two point slope form :

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

Substitute the values

y-1830=\frac{2460-1830}{135-100}(x-100)

y-1830=18(x-100)

y-1830=18x-1800

y=18x-1800+1830

y=18x+30

y denotes the cost

x denotes the weight

So, Replace y with C and x with w

C=18w+30

So, a linear model for the cost, C, of waste collection as a function of the number of kilograms, w is C=18w+30

7 0
3 years ago
7=5y-13-y
liberstina [14]

Step-by-step explanation:

7=4y-13

7+13=4y

20/4=y

5=y

8 0
3 years ago
What is 30-[9+4(8-5)]
Gnoma [55]

Answer:

9

Step-by-step explanation:

30 - (9+4 x 3)

30 - (9 + 12)

30 - 21

= 9

3 0
3 years ago
Compare the Triangle Proportionality Theorem and the Triangle Midsegment Theorem.
Alenkinab [10]
A midsegment of a triangle is parallel to one side of the triangle, and its length is one half of the length of that side.

If a line is parallel to one side of a triangle and intersects the other two sides, then it divides the sides into segments of proportional lengths.
6 0
3 years ago
What is the answer to 4 (-1/2)?
Mila [183]

Answer:

-2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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