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2 years ago

Use elimination to solve this system of equations. X-4y=-11 and 5x-7y=-10

Mathematics

1 answer:

Romashka-Z-Leto [24]2 years ago

7 0

Hopefully this helps you start to understand the steps to take in elimination

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Now You Try!

tresset_1 [31]

Answer:

Step-by-step explanation:

6 0

2 years ago

Consider two people being randomly selected. (For simplicity, ignore leap years.)

inna [77]

Answer:

$(a) = \frac{144}{133225} \\\\(b) = \frac{1}{365}$

Step-by-step explanation:

Part (a) the probability that two people have a birthday on the 9th of any month.

Neglecting leap year, there are 365 days in a year.

There are 12 possible 9th in months that make a year calendar.

If two people have birthday on 9th; P(1st person) and P(2nd person).

$=\frac{12}{365} X\frac{12}{365} = \frac{144}{133225}$

Part (b) the probability that two people have a birthday on the same day of the same month

P(2 people selected have birthday on the same day of same month) + P(2 people selected not having birthday on same day of same month) = 1

P(2 people selected not having birthday on same day of same month):

$= \frac{365}{365} X \frac{364}{365} =\frac{364}{365}$

P(2 people selected have birthday on the same day of same month) $= 1-\frac{364}{365} \\\\= \frac{1}{365}$

7 0

2 years ago

What is an atom? and what is the difference of atom and molecule

Anettt [7]

Answer: An atom is the basic unit of matter and the defining structure of elements. The difference between an atom and a molecule is that molecules are formed when two or more atoms bond together. If molecules contain atoms of different elements, that substance is known as a compound. Atoms make up molecules.

6 0

2 years ago

Read 2 more answers

The square below has a perimeter of 12 m what is the length of one side of the square

Anna007 [38]

3m because in a square all sides are the same and there are 4 sides, so 12 ÷ 4 = 3

6 0

2 years ago

Raymond uses the Venmo

Arisa [49]

Answer:

2.29

Step-by-step explanation:

2.95 plus 1.26 is 4.21, and 6.50 minus 4.21 is 2.29.

5 0

3 years ago