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Law Incorporation [45]
3 years ago
7

5x + 2y = 1 x - 2y = 5 Solve by substitution Thank you

Mathematics
1 answer:
quester [9]3 years ago
7 0

Answer:

The answer is ( 1 , -2) in point form or x = 1 , y = -2 in eqaution form.

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Examine the statement.
azamat

Answer/Explanation:

I agree with the statement because primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to: each chemical name should refer to a single substance.  The first separation of importance is to distinguish between inorganic and organic compounds.

5 0
3 years ago
Katie lunch cost 17 dollars no tax she gave a tip of 18 percent of the cost of lunch what’s the total cost no tax
Pie
Answer: $20.06

To find how much 18% of the cost is, convert the percentage to a decimal by dividing by 100. Then multiply that decimal to the cost.

18/100 = .18 (percentage as decimal)
17*.18 = $3.06 (18% of the cost)
3.06+17 = $20.06 (total price with tip of 18% and cost)
6 0
3 years ago
The graph shows a system consisting of a linear equation and a quadratic equation. What are the solutions to the system? Multipl
Novay_Z [31]
(5,-1) and (2,-4) the solution is where the lines meet
4 0
3 years ago
Use the given information to write the standard form equation of a circle:
tiny-mole [99]

Answer:

The formula for the equation of a circle is (x – h) 2 + (y – k) 2 = r 2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. If a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

Step-by-step explanation:

6 0
3 years ago
IF x+y=5 and x-2y=-4 find the value of x and y​
Serggg [28]

Answer:

x = 2, y = 3

Step-by-step explanation:

x + y = 5

Shift y to the other side and change to (-y).

x = 5 - y  --- Equation 1

x - 2y = -4 --- Equation 2

Substitute x = 5 - y into Equation 2:

x - 2y = -4

5 - y - 2y = -4

Shift 5 to the other side and change to (-5).

-y - 2y = -4 - 5

Evaluate like terms.

-3y = -9

Divide both sides by -3.

y = -9 ÷ -3

y = 3

Substitute y = 3 into Equation 1:

x = 5 - y

x = 5 - 3

x = 2

4 0
3 years ago
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