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skelet666 [1.2K]
3 years ago
5

use the substitution method to solve the system of equations choose the correct order pair. 3x+y=10 y=x-2

Mathematics
2 answers:
Aneli [31]3 years ago
4 0
3x +(x-2)=10 you substitute the y= for the y
Add the x 4x -2 =10
Move the -2 to the other side 4x =12
x= 3
Now substitute the x= for the x in the other equation y= 3-2
y=1
Your answer is (3,1)
Hope this helps❗️
shutvik [7]3 years ago
3 0
3x+(x-2)=10
4x=12
x=12/4=3

y=x-2=3-2=1

so, x=3 and y=1

Answer: (3;1)
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6 0
3 years ago
Three friends Kofi,Yaw and Musa are in partnership business in which Kofi and Yaw contributed 5/9 and 2/15 of the cost of 14000.
wlad13 [49]

Answer:

(a) Total = 45000

(b) Yaw, Musa and Kofi

Step-by-step explanation:

Given

Kofi =5/9

Yaw = 2/15

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Solving (a): The cost of the business

First, we solve for the fraction of Musa

Musa + Kofi + Yaw = 1

Musa = 1 - (Kofi + Yaw )

Musa = 1 - (5/9 + 2/15)

Musa = 1 - (\frac{25+6}{45})

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So, we have:

\frac{14}{45} * Total = 14000

Make Total the subject

Total = 14000 * \frac{45}{14}

Total = 1000 * 45

Total = 45000

Solving (b): Partners in ascending order

First, represent the fractions as decimals

Kofi =5/9 = 0.5556

Yaw = 2/15 = 0.1333

Musa = \frac{14}{45} = 0.3111

From the conversion above, the least is 0.1333 (Yaw), then 0.3111 (Musa), then 0.5556 (Kofi).

<em>So, the order is: Yaw, Musa and Kofi</em>

6 0
3 years ago
What is the average rate of change of the functionf(x)=20(14)x from x = 1 to x = 2?
atroni [7]
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<h2>Please Mark me as brainlist. </h2>

8 0
3 years ago
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Vilka [71]
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6 0
3 years ago
1 – 7k + 3k 2 + 10k + 7 – 5k 2
Katyanochek1 [597]

1) The variables are "k"

2) There are 4 terms

3) The coefficients are k

4) The constants are -7, 3, 10, -5

5) The like terms is -7k, 3k, 10k, -5k

The answers are pretty direct but, hope this answers your question.

Have a great day/night!

8 0
3 years ago
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