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Crank
3 years ago
15

Directions - solve the liner system. enter your answer as an ordered pair. 2x + 3y = 31 y = x + 7

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

(1) 2x + 3y = 31 y

(2) 2x + 3y = x + 7

(3) 31y = x + 7

(3) x = 31y - 7

(2) 2(31y - 7) + 3y = 31y - 7 + 7 ; 62y - 14 + 3y = 31y ; 34y = 14 ; y = 14/34 ; y = 7/17

(3) x = 31y - 7 ; x = 31*(7/17) - 7 ; x = (217 - 119)/17 = 98/17

x = 98/17 ≈ 5.76

y = 7/17 ≈ 0.41

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8 0
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8 0
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70% of a number is 98.
Anni [7]
Set up the proportion:
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8 0
3 years ago
Find the conjugate and product of<br><br>2-i5 ​
WITCHER [35]

Answer: 2+i5,\ 29

Step-by-step explanation:

Given

Complex number is 2-i5

Its conjugate is obtained by changing the sign of the original number i.e. 2+i5

The product of the two numbers is

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3 years ago
The principal would like to assemble a committee of 4 students from the 16-member student council. How many different committees
mamaluj [8]

Answer:

4?

Step-by-step explanation:

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3 0
3 years ago
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