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Lerok [7]
3 years ago
13

Describe how to substitute an ordered pair into an equation.

Mathematics
1 answer:
Tatiana [17]3 years ago
5 0
Let's say you have the equation

5x + 3y = 11

You are asked to test the ordered pair (1, 2) to see if it is a solution of the equation. A solution of the equation will make the equation a true statement. The ordered pair (1, 2) has 1 as its x-coordinate and 2 as its y-coordinate.
Substitute 1 for x and 2 for y in the equation. Then work it out to see if it is a true statement.

5x + 3y = 11

5(1) + 3(2) = 11

5 + 6 = 11

11 = 11

Since 11 = 11 is a true statement, the ordered pair (1, 3) is a solution of the equation.
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WINSTONCH [101]
7 stamps* ($2.20/ 5 stamps)= $3.08.
(Note that the unit cancels out so you get the answer)

The final answer is $3.08~
6 0
4 years ago
the function f(x)=5(2)x represents number of bacteria, f(x), growing in a culture after x hours. How many bacteria are in the cu
snow_tiger [21]
<h3>Answer:  40</h3>

=============================================

Explanation:

Assuming the function is f(x) = 5(2)^x, then we replace every x with 3. Then we use the order of operations PEMDAS to simplify. Or we can use a calculator to simplify in one step.

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4 0
4 years ago
Tickets to a local movie were sold at $6.00 for adults and $4.50 for students. If 110 tickets were sold for a total of $615.00,
meriva

Answer:

101 adults and 9 students

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606 + 9 = 615

3 0
3 years ago
The output is less than the input
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We r learning the energy unit too! what's ur question?
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3 years ago
Brent's pick-up truck can carry 1/5 ton.Nina's pick-up truck can carry 500 pounds.Whose pick-up truck can carry more weight? Exp
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Nina's truck holds more, because Brent's pick-up holds 1/5 a ton, and a ton is 2000 pounds, so 2000 x 1/5 is 400, and is less than Nina's truck.
3 0
3 years ago
Read 2 more answers
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