All categories

3 years ago

-3x + 5y = -6 6x - 10y = 12

Mathematics

1 answer:

enyata [817]3 years ago

7 0

Answer:

1. Let's solve for x.

−3x+5y=−6

Step 1: Add -5y to both sides.

−3x + 5y + −5y = −6 + −5y

−3x = −5y − 6

Step 2: Divide both sides by -3.

−3x

−3

−5y−6

−3

y+2

2. Let's solve for x.

6x−10y=12

Step 1: Add 10y to both sides.

6x−10y+10y=12+10y

6x=10y+12

Step 2: Divide both sides by 6.

10y+12

y+2

You might be interested in

Point d is the center of the given circle. what is the measure of ?

Scorpion4ik [409]

Whatb is the measure of what ? please complete this your question

6 0

3 years ago

Sari has to read a book for English class by the end of the week she wants to read at least 200 pages in the first 5 days of the

zimovet [89]

You divide 200 by 5 and you get 40.

3 0

2 years ago

25 points

lbvjy [14]

Answer:

unit_4_study_guide_solutions.pdf

Step-by-step explanation:

This link is a study guide, and on the LAST PAGE it has the answer to your question!

4 0

3 years ago

1/3x² + x+5/3x² = 1/9 HAHAHAHA......

mr_godi [17]

Answer:

Now, 3x 2+x+5⩾0

This is because b² −4ac=1−4×5×3

=−59 (roots are imaginary)

3x²+x+5=(x−3)² =x²+9−6x and x−3⩾0

2x²+7x−4=0

2x²+8x−x−4=0

2x(x+4)−1(x+4)=0

(2x−1)(x+4)=0

x= 1/2 and−4 but x≥3

∴ No solution.

lol hehehe

7 0

2 years ago

Read 2 more answers

A block of ice has a square top and bottom and rectangular sides. At a certain point in

Lilit [14]

Answer:

$\frac{dV}{dt} = 360 \ cm^3/h$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Geometry

Volume of a Rectangular Prism: V = lwh

Calculus

Derivatives

Derivative Notation

Differentiating with respect to time

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

$l = 30 \ cm\\w = l\\\frac{dl}{dt} = 2 \ cm/h\\h = 20 \ cm\\\frac{dh}{dt} = 3 \ cm/h$

Step 2: Differentiate

Rewrite [VRP]: $V = l^2h$
Differentiate [Basic Power Rule]: $\frac{dV}{dt} = 2l\frac{dl}{dt} \frac{dh}{dt}$

Step 3: Solve for Rate

Substitute: $\frac{dV}{dt} = 2(30 \ cm)(2 \ cm/h)(3 \ cm/h)$
Multiply: $\frac{dV}{dt} = 360 \ cm^3/h$

Here this tells us that our volume is decreasing (ice melting) at a rate of 360 cm³ per hour.

3 0

3 years ago