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3 years ago

What is -3(2x-3)=-15

Mathematics

2 answers:

Oksanka [162]3 years ago

7 0

Answer:

Step-by-step explanation:

-3(2x-3)

-3x(-6)

-3x-6=18 because the negatives cancel each other out.

RUDIKE [14]3 years ago

3 0

Answer:4

Step-by-step explanation:

distribute -3 to both terms and you get -6x+9=-15. next you’ll subtract -15 by 9 and get -24. the equation is now -6x=-24. the final step is to divide -24 by -6 and you’ll get 4

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Rearrange the formula to make x the subject. y = 4x + 3

allochka39001 [22]

Answer:

$x=\frac{y-3}{4}$

Step-by-step explanation:

$y=4x+3$

$y-3=4x$

$\frac{y-3}{4}=x$

$x=\frac{y-3}{4}$

4 0

3 years ago

Read 2 more answers

45 miles in 40 minutes

charle [14.2K]

Hi there!

45 mi to 40 min = 1.125 mi per min

45 ÷ 40 = 1.124

Hope this helps!

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3 years ago

2. Factor completely: f(x) = x4 - 6x2? – 27

VladimirAG [237]

Answer:

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3 years ago

Solve each of the following equations using a method other than the Quadratic Formula.

liraira [26]

Answer:

y^2-6y = 0

or, y(y-6) = 0

or, y = 0 or y = 6

n^2+5n+7 = 7

or, n^2+5n+7-7 = 7-7 ( Subtracting 7 from both sides)

or, n^2+5n = 0

or, n(n+5) = 0

or, n=0 or n= -5

2t^2-14t+3 = 3

or, 2t^2-14t = 0

or, 2t(t-7) = 0

or, t=0 or t=7

1/3x^2+3x-4 = -4

or, 1/3x^2+3x = 0

or, 1/3x(x+9) = 0

or, x=0 or x= -9

Zero is a common solution to each of the equations. This is because each of the equations had a variable outside the parenthesis with an operation of multiplication.

THANK YOU FOR READING.

8 0

2 years ago

If AC is parallel to DE, find X

UNO [17]

Answer: x = 50

Concept:

Here, we need to know the idea of alternative interior angles and the angle sum theorem.

Alternative interior angles are angles that are formed inside the two parallel lines, and the values are equal.

The angle sum theorem implies that the sum of interior angles of a triangle is 180°

If you are still confused, please refer to the attachment below or let me know.

Step-by-step explanation:

Given information:

AC ║ DE

∠ABC = 85°

∠A = 135°

Find the value of ∠BAC

∠A + ∠BAC = 180° (Supplementary angle)

(135°) + ∠BAC = 180°

∠BAC = 45°

Find the value of ∠BCA

∠ABC + ∠BAC + ∠BCA = 180° (Angle sum theorem)

(85°) + (45°) + ∠BCA = 180°

∠BCA = 50°

Find the value of x (∠EBC)

∠EBC ≅ ∠BCA (Alternative interior angles)

Since, ∠BCA = 50°

Therefore, ∠EBC = 50°

$\Large\boxed{x=50}$

Hope this helps!! :)

Please let me know if you have any questions

8 0

1 year ago