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7nadin3 [17]
3 years ago
12

Solve the system of equations by elimination.

Mathematics
2 answers:
n200080 [17]3 years ago
4 0

Answer:

Step-by-step explanation:

1. 2x - 9y = 23

2 x = 9 y + 23

y = (2 x)/9 - 23/9

2 x - 9 y - 23 = 0

2. 5x - 3y = -1

5 x + 1 = 3 y

y = (5 x)/3 + 1/3

5 x - 3 y + 1 = 0

I belive that should help you out a bit :D

In-s [12.5K]3 years ago
4 0

Answer:

(x,y) = (-1/5 + 3v/5, -13/5+2v/15)

Step-by-step explanation:

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andreev551 [17]

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Factor the following polynomial 9x2 + 21x – 18
solong [7]

Answer:

factors are

21 and x

Step-by-step explanation:

equation 9 × 2 + 21x - 18

terms 9 , 2, 21x, -18

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3 years ago
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Divison probem that equals 36
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Each year Lizzie’s school purchases student agenda books, which are sold in the school store. This year, the school purchased 35
Stells [14]

The school can charge $7.54 for each agenda book.

Step-by-step explanation:

Given,

Purchase price of 350 books = $1137.50

Profit they want to make = $1500

Total amount = 1137.50 + 1500 = $2637.50

Therefore;

The school must sell 350 books for $2637.50

Thus,

350 books = 2637.50 dollars

1 book = \frac{2637.50}{350}

1 book = $7.535

Rounding off to nearest cent

1 book = $7.54

The school can charge $7.54 for each agenda book.

Keywords: addition, division

Learn more about addition at:

  • brainly.com/question/10666510
  • brainly.com/question/10699220

#LearnwithBrainly

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