What is the substitution method?

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Answer 1
Answer: The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable

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Aflati 2 numere stiind ca sunt direct proporționale cu 5 și 3 și suma lor este 100

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Answer:

idk

Step-by-step explanation:

30% of 60 is

30%of ____ is 60

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you know that 3 times 2 is 6 so 30'times 20 equals 60

Answer:

Step-by-step explanation:

About 5.67811 X10^5 liters of water flow over Niagara Falls per second there are 3.15576 x10^7 seconds in one year the number of liters of water that flows over Niagara Falls each year are about 5.67811 x 10^5 x3.15476x10^7A.1e12
B. 179187524.1
C.1.791875241e13
D. 1.92559524e-44

Answers

Answer:

C.  1.791875241e13

Step-by-step explanation:

We have that,

Amount of water flows over Niagara Falls per second = 5.67811×10⁵

Also, the number of seconds in a year = 3.15576×10⁷

Thus,

Liters of water that flows in a year = Amount of water that flows × Number of seconds

i.e. Liters of water = 5.67811 × 10⁵ × 3.15576 × 10⁷

i.e. Liters of water = 17.91875241 × 10¹²

i.e. Liters of water = 1.791875241 × 10¹³

Hence, the liters of water that flows through Niagara Falls each year is 1.791875241 × 10¹³ i.e. 1.791875241e13

Answer:

C-the one with e13

Step-by-step explanation: I just did it on i-ready and got it right. plz mark brainliest.

Answer for 100 POINTS! Marking every correct answer brainiest. Use the picture below.

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Answer:

0, 1, 4, 5, 6, and 9 can be the last digits of the squares of natural numbers.

Step-by-step explanation:

When looking at a list of the perfect squares, the last digits continuously follow this pattern: 1, 4, 9, 6, 5, 6, 9, 4, 1, 0. After this it repeats. This means that these are the only numbers that can be the last digits. When you take out the repeated numbers you get: 1, 4, 5, 6, 9, 0 which when written in order is:

0, 1, 4, 5, 6, and 9

Graph the linear equation y=3x+3

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Hope this helps! The answer is in the picture.

Can anyone answer these math problems ? can u plz show work

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To me they look all answered...