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Alik [6]
3 years ago
5

Use the substitution method to find the value of y in the given system of equations y=2x+5 x+y=4

Mathematics
1 answer:
seropon [69]3 years ago
6 0

Answer:

y = 13/3

Step-by-step explanation:

substitute y=2x+5 in x+y = 4

x+2x+5 = 4

3x+5=4

3x= -1

x= -1/3

substitute x= 1-/3 in x+y = 4

-1/3 +y = 4

y = 13/3

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ivanzaharov [21]

Answer:

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hope it helps

3 0
3 years ago
Solve and round to the nearest hundredth 24.5 = - 2.5c - 4c
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Answer:

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6 0
3 years ago
Angela works a basic week of 40 hours and her hourly rate of pay is $12.50. Calculate her weekly wage.
lutik1710 [3]

Answer:

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Step-by-step explanation:

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Find X <br><br> Simplify answer type exact number or use radicals as needed
satela [25.4K]
On a right triangle, to find one missing side you can use this equation
a^2 + b^2 = c^2

a and b are the sides next to the right angle, and c is the hypotenuse (side not connected to right angle).

You first need to find the length of the dotted line before finding x. This is because to be able to use the above formula, you have to know the length of two out of three of the sides.

To solve the length of the dotted line, note that it also makes a triangle with the 5 unit line and the 5 √5 unit line. You can plug these numbers into the formula.
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Now that you know the length of the dotted line is 10 units, you can now solve for x

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