All categories

3 years ago

X-Y=5, 6X-6Y =?

Mathematics

2 answers:

denis-greek [22]3 years ago

3 0

Answer:

Yes, it is 30

Step-by-step explanation:

And yes, you thought it through correctly. 6(X-Y) = 6*5

6(X-Y) = 30

tatiyna3 years ago

3 0

Answer:

$\displaystyle 6x - 6y = 30$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Equality Properties

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

Terms/Coefficient

Factoring

Step-by-step explanation:

Step 1: Define

Identify.

x - y = 5

Step 2: Solve

Factor: $\displaystyle 6x - 6y = 6(x - y)$
Substitute in expression: $\displaystyle 6x - 6y = 6(5)$
[Order of Operations] Evaluate: $\displaystyle 6x - 6y = 30$

You might be interested in

the length of a rectangle is 7 cm less than its width what are the possible dimensions of the rectangle if its area is 120 squar

horsena [70]

Width is 15 cm.

Refer to the image for details.

5 0

3 years ago

1. For a few months, Dexter recorded the amounts, in fluid ounces, of laundry detergent remaining y after he and his family wash

My name is Ann [436]

The answer would be B simply because it sounds more reasonable.

7 0

3 years ago

Original price: $23.37 with tax : $24.91 what is the sales tax percentage

Marina86 [1]

Answer:

6.6% = tax rate

Step-by-step explanation:

The first step is to find out how much was paid in tax

24.91 - 23.37 =1.54

The tax is 1.54

The tax is the original price * tax rate

1.54 = 23.37 * tax rate

Divide each side by 23.37

1.54/23.37 = tax rate

.065896448= tax rate

Changing to percent form

6.6% = tax rate

8 0

4 years ago

Find the equation of a circle in standard form that is tangent to the line x = -3 at (-3, 5) and also tangent to the line x = 9.

Sedaia [141]

Answer:

(x -3)² +(y -5)² = 36

Step-by-step explanation:

The center is on the vertical line halfway between the given vertical lines, so is at x=3. It is also on the horizontal line through the point (-3, 5), so is at y=5. The center is 9-3=6 from either tangent line, so this is the radius.

For center (h, k) and radius r, the circle's equation is ...

(x -h)² +(y -k)² = r²

For (h, k) = (3, 5) and r=6, the equation is ...

(x -3)² +(y -5)² = 36 . . . . . . . . does not match any choice written here

6 0

4 years ago

I'm so confused please hurry

pychu [463]

Answer:

y = 5
x = -5
z = 10

Step-by-step explanation:

For Explanation , see image

6 0

3 years ago