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2 years ago

Which ordered pair solves the system of equations?

Mathematics

1 answer:

Serggg [28]2 years ago

7 0

Answer:

(1;1)

Step-by-step explanation:

1. if y=2x-1, then it is possible to substitute 2x-1 into the 2d equation:

5x-4(2x-1)=1, ⇒ 5x-8x+4=1, ⇔ -3x=-3, ⇔ x= 1;

2. if x=1, then y=2x-1=2-1= 1.

3. the required pair is (1;1)

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Using the numbers -2,-3,5,2 create one expression that equal 10

Nostrana [21]

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2 years ago

Sara had 94 dollars to spend on 8 books. After buying them she had 14 dollars. How much did each book cost

cestrela7 [59]

Answer: $10

Step-by-step explanation:

Let's analize the information given: We know that she had $94 to spend on 8 books and after buying these books she had $14. So, we need to calculate the amount of money she spent. Subtract $94 and $14:

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Then, to calculate the cost of each book, we need to divide the "Total spent" by 8:

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2 years ago

1/3x + 3 = -2 <br> steps please

Lunna [17]

Answer:

what is this for?

Step-by-step explanation:

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2 years ago

PLEASE HELP! 40 POINTS

Vedmedyk [2.9K]

I'd start with setting up the equations. Calling x the number of students in most popular country 1, and y in country 2.

x + y = 44740

x - y = 5672

now solve for x1 and x2. You can subtract second from first:

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Add a sentence to answer it in words.

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2 years ago

Read 2 more answers

Which is larger 1:40 or 1:60

agasfer [191]

1:40.

1:40 is equal to 1/40, while 1:60 is equal to 1/60.

1/40 is the bigger fraction, so 1:40 is the correct answer.

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3 years ago