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3 years ago

What is the value of y in the solution to the following system of equations ?

1 answer:

4 0

We can use substitution method to solve for this system of equations. We calculate as follows:

2x – 6y = –14
-6y = -14 -2x
y = x/3 + 7/3

5x – 3y = –11
5x – 3(x/3 + 7/3) = –11
5x - x + 7 = -11
4x = -11 -7
4x = -18
x = -9/2
y = -9/2(3) + 7/3
y = 5/6

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Airida [17]

9514 1404 393

Answer:

25/42 mi

Step-by-step explanation:

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3 years ago

Need help with #2 and #3 all of the problem

-Dominant- [34]

Answer:

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2 years ago

Calculate the length of the unknown side of this right angled triangle

azamat

Answer:

12.04

Step-by-step explanation:

Well to solve for the unknown side "c" we need to use the Pythagorean Theorem formula,

$a^2 + b^2 = c^2$

We already have a and b which are 8 and 9 so we plug them in.

$(8)^2 + (9)^2 = c^2$

64 + 81 = c^2

145 = c^2

c = 12.04 rounded to the nearest hundredth.

Thus,

the unknown side is about 12.04.

Hope this helps :)

8 0

3 years ago

{(2,5),(7,3)} is the inverse relation of the function {(5,2),(3,7)} truth or false

dezoksy [38]

frankly yes, because when you want inverse a function you must inverse it with line x=y

so when you inverse a function Df and Rf will convert together!

7 0

3 years ago

Let FICA tax rates be 7.65% on the first $127,200 of income from wages, and 1.45% on any income from wages in excess of $127,200

malfutka [58]

Answer:

The tax is split between employers and employees. They both pay 7.65% (6.2% for Social Security and 1.45% for Medicare) of their income to FICA, the combined contribution totaling 15.3%. The maximum taxable earnings for employees as of 2020 is $137,700.

Correct me if you want If its wrong

5 0

3 years ago