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Mkey [24]
3 years ago
6

In the system of equations, which variable would it be easiest to solve for?

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
5 0

Answer:

Step-by-step explanation:

The easiest to solve for is y in the second equation.   Just subtract 3x from both sides, obtaining y = -3x + 9.

Likurg_2 [28]3 years ago
4 0

Answer:

y in the second equation

Step-by-step explanation:

y in the second equation because +1 is the understood coefficient which means you will have one step and that is it to solve for y in 3x+y=9

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If a*b means 2a + b , then what is 2*5 ?
NeX [460]

Answer:

9

Step-by-step explanation:

let a = 2

b = 5

2a + b

Substituting the values,

=> 2(2) + 5

=> 4 + 5

=> 9

3 0
3 years ago
The speed of light is approximately 299,000,000 meters per second.
jek_recluse [69]

Answer:

2.99 x 10⁸ meters per second

Step-by-step explanation:

Scientific notation (also called "Standard form") is written in the form of a \times 10^n, where  1\leq a < 10  and  n is any positive or negative whole number.

To <u>convert</u> a number into <u>scientific notation</u>, move the decimal point to the left or right until there is <u>one digit before the decimal point.</u>

The number of times you have moved the decimal point is the power of 10 (n).

If the decimal point has moved to the <u>left</u>, the power is <u>positive</u>.

If the decimal point has moved to the <u>right</u>, the power is <u>negative</u>.

<u>To convert the given number to scientific notation</u>

The decimal point for the given number 299000000 is after the last zero:

⇒  299000000.

Move the decimal point 8 places to the left:  

⇒ 2.99000000

Get rid of the redundant zeros:

⇒ 2.99

Multiply by 10 to the power of the number of decimal places moved:  

⇒ 2.99 x 10⁸

Therefore, the speed of light using scientific notation is:

  • 2.99 x 10⁸ meters per second
7 0
2 years ago
I need solve this problem can you help me please ?
VARVARA [1.3K]
ED = 68
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Write the equation of a line in slope-intercept form that has a slope of -1/4x and a y-intercept of 5
lesya692 [45]

Answer:

Step-by-step explanation:

Slope = m = -1/4

y-intercept = b = 5

Slope intercept form = y = mx +b

y =\dfrac{-1}{4}x+5

4 0
3 years ago
lauren is saving for gymnastics camp camp cost 225 attend she got 40 percent of the money saved how much money has she saved
Mila [183]

She has saved 90 dollars

5 0
3 years ago
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