Answer:
6
Step-by-step explanation:
3 ⋅ 2^t
Let t=1
3 ⋅ 2^1
Exponents first
3 * 2
6
12/30 = 2/5
12/30 = 0.4
Answer: 2/5 or 0.4
*Hope that helps and Enjoy Brainly :)
This is a system of equation:
7y - 5x = 31
x = 4 - 2y
Plug in 4 - 2y for x
7y - 5(4 - 2y) = 31
Distribute -5 to both 4 and -2y
7y - 20 + 10y = 31
Simplify
17y - 20 = 31
Isolate the y. Note the equal sign. What you do to one side you do to the other. Do the opposite of PEMDAS.
Add 20 to both sides
17y - 20 (+20) = 31 (+20)
17y = 51
Divide 17 from both sides to isolate the y
17y/17 = 51/17
y = 51/17 or 3
y = 3
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Plug in 3 for y in one of the equations.
x=4−2y
x = 4 - 2(3)
Simplify.
x = 4 - 6
x = -2
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x = -2, y = 3 is your answer, or B)
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hope this helps
Equations are expressions with equal values
The equation that links x and y is 
<h3>How to determine the equation</h3>
The ratio is given as:
Express the ratio, as a fraction
Cross multiply
Evaluate the product
Hence, the equation that links x and y is
Read more about equations at:
brainly.com/question/7784687
Answer:
1 year
Step-by-step explanation:
