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3 years ago

#22 im not sure what the first step is

Mathematics

1 answer:

swat323 years ago

8 0

To rotate a point 180° about the origin, you simply have to multiply -1 to the first and second coordinate. For your problem, just do that for all the points and list them out.

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Solve systems of equations for y and x: −5y + 8x = −18 5y + 2x = 58

Natali5045456 [20]

Answer:

(4, 10)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Coordinates (x, y)
Coefficients
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

-5y + 8x = -18

5y + 2x = 58

Step 2: Solve for x

Elimination

Combine 2 equations: 10x = 40
[Division Property of Equality] Divide 10 on both sides: x = 4

Step 3: Solve for y

Substitute in x [Original equation]: -5y + 8(4) = -18
Multiply: -5y + 32 = -18
[Subtraction Property of Equality] Subtract 32 on both sides: -5y = -50
[Division Property of Equality] Divide -5 on both sides: y = 10

7 0

2 years ago

What is 49/16 simplified

telo118 [61]

3 1/16=49/16. I hope this helped. :) Brainlest answer ? :)

3 0

3 years ago

the deli lunch special offers customers half off the total cost of a sandwich of their choice and a bag of pretzels. The origina

KATRIN_1 [288]

The total cost of the customers order is s/2 + 1.50 dollars.

Explanation:

Let s represent the cost of sandwich

Cost of pretzels = 1.50 dollars

Special offer by deli lunch = Half of the cost of sandwich + bag of pretxel

Cost of offer. = s/2 + 1.50 dollars

Original order = 1 sandwich

Originial cost = s dollars

6 0

2 years ago

Will spent $15 for 12 pounds of granola. What is his unit rate in dollars per pound?

Snowcat [4.5K]

Answer:

1.25

Step-by-step explanation:

to find the unit rate you have to find out how much one pound will be so you divide 15 by 12 and you get 1.25

3 0

2 years ago

What are the x and y-intercepts of the line described by the equation?

pishuonlain [190]

To find the x-intercept, substitute 0 for y and solve for x.
-6x + 3(0) = 18.9
-6x = 18.9
x = 18.9 / -6
x = -3.15 <-- Your x-intercept is (-3.15,0)

To find the y-intercept, substitute in 0 for x and solve for y.
-6(0) + 3y = 18.9
3y = 18.9
y = 18.9/3
y = 6.3 (0,6.3) <-- Your x-intercept is (0,6.3)

If this helped, please mark me brainliest, thank you and if you need more help, feel free to message me!

8 0

2 years ago