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timofeeve [1]
3 years ago
13

Solving systems of equations by substitution

Mathematics
1 answer:
Solnce55 [7]3 years ago
7 0
Substitution is a method of finding x or y value by taking,
——-

1st full equation in name of x and substituting to get the value.

Hope helped
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0.17 is the decimal, answer 3
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The gas tank in Ms. Brown's car holds a total of 15 gallons. At any given time, how many gallons, g, will Ms. Brown have to pump
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Willa is building birdhouses. Each side of the birdhouse will need 9 nails. How many nails does Willa need for each birdhouse? T
erma4kov [3.2K]

The total number of nails will decrease by 14 when Willa will use 7 nails on each side.

Step-by-step explanation:

Sides of one birdhouse = 7

Nails used on each side = 9

Nails used on one birdhouse = No. of sides * Nails used for each side

Nails used on one birdhouse = 7*9 = 63 nails

If she uses 7 nails on each side, then the number of nails used on each birdhouse will be;

No. of nails = 7*7 = 49 nails

Difference = Old value - New value

Difference = 63-49 = 14

The total number of nails will decrease by 14 when Willa will use 7 nails on each side.

Keywords: multiplication, subtraction

Learn more about subtraction at:

  • brainly.com/question/7490805
  • brainly.com/question/7857079

#LearnwithBrainly

8 0
4 years ago
Imagine that you are given two linear equations in slope-intercept form. You notice that the slopes are different, but the vinte
lesantik [10]

Answer:

There's only 1 solution, so A is correct

Step-by-step explanation:

When two equations have different slopes, it always means they will have one solution because the two lines when graph will intersect each other once. So regardless if the y-intercepts are the same or not, it'll be only one solution.

Hope that makes sense!

5 0
3 years ago
A random number generator is used to select an integer from 1 to 5050 ​(inclusively). What is the probability of selecting the i
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Answer:

The probability of selecting the integer 2424​ is 0.0000198.

Step-by-step explanation:

The sample size of the set of random number generated is, <em>N</em> = 5050.

The integer 2424 is consisted in the range 1 - 5050.

The probability of an event, say E, is:

P(E)=\frac{Favorable\ outcomes}{Total\ no.\ of\ outcomes}

The probability of selecting the integer 2424​ is:

P(2424)=\frac{1}{5050} = 0.0000198

Thus, the probability of selecting the integer 2424​ is 0.0000198.

3 0
3 years ago
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