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mrs_skeptik [129]
3 years ago
6

X + 2y = 5 3x + 5y = 14 Solve the system of equations. (3, 1) (7, -1) (2, 3/2)

Mathematics
2 answers:
andre [41]3 years ago
5 0

Answer:

Choice 1 is true answer.

Step-by-step explanation:

We have given two equations.

x+2y = 5                        eq(1)

3x+5y = 14                     eq(2).

we use substitution method to solve this system of equations.

From eq(1), separate x.

x = 5-2y                             eq(3)

substituting the value of x in eq(2)

3(5-2y)+5y = 14

15-6y+5y = 14

Adding -15 to both sides of above equation, we have

-15+15-6y+5y =-15+14

Adding like terms ,we have

-y = -1

y = 1

Substituting the value of y in eq(3),we have

x = 5-2(1)

x = 5-2

x = 3

hence, the solution of given system is (3,1).

aniked [119]3 years ago
4 0

Answer:

The solution is (3 , 1)

Step-by-step explanation:

To solve the system of the equation you can use the elimination method or substitution method.

We will use the substitution method

From the first equation x + 2y = 5⇒get  x = 5 - 2y

In the second equation 3x + 5y = 14⇒we will substitute x by 5 - 2y

3(5 - 2y) + 5y =14

15 - 6y + 5y = 14

-6y + 5y = 14 - 15

-y = -1

y = 1

Substitute the value of y in x = 5 - 2y

x = 5 - 2(1) = 5 -2 =3

∴ The solution of the system of equations is (3 , 1)

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Answer:

Answer: 1/10 of the store's total sales last month were in appliances (lower right corner)

Step-by-step explanation:

Explanation: 

Let's go through the four possible answers

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In the lower left corner, it says "the total sales is likely greater than $300,000" but we don't know for sure because again we don't have the other charts for the three other stores. Assuming the four stores perform the same, then we'd have 4*60 = 240 thousand as the total and not 300 thousand. It's safe to say we can eliminate this as an answer.

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balu736 [363]

Answer: \Large\boxed{Wage=\$240}

Step-by-step explanation:

<u>Given information</u>

Paid = $15.00 / hour

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Total hour = 12 hours

<u>Given expression</u>

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<u>Substitute values into the expression</u>

Wage = (15) × (12 - 4) + (15 × 2) × (4)

<u />

<u>Simplify values in the parenthesis</u>

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<u>Simplify by multiplication</u>

Wage = 120 + 120

<u>Simplify by addition</u>

\Large\boxed{Wage=\$240}

Hope this helps!! :)

Please let me know if you have any questions

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Which sequence of transformations will change figure PQRS to figure P′Q′R′S′?
8090 [49]
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Reflection over x-axis formula is
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Just to save times
Let check the last one
Counterclockwise rotation about the origin by 90 degrees followed by reflection about the y-axis
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