All categories

3 years ago

The question is find the product of -8 and the sum of -2(10x + 3y) and -5(6y -7x)

Mathematics

2 answers:

N76 [4]3 years ago

8 0

Answer:

- 120x + 288y

Step-by-step explanation:

Begin by summing the 2 expressions

- 2(10x + 3y) - 5(6y - 7x) ← distribute parenthesis

= - 20x - 6y - 30y + 35x ← collect like terms

= 15x - 36y

Now multiply the result by - 8

- 8(15x - 36y) ← distribute

= - 120x + 288y

Oliga [24]3 years ago

6 0

Answer:

Step-by-step explanation:

-2(10x + 3y)

-20x -6y [-2 multiplied by 10x = 20x, negative + positive = negative]

-5(6y -7x)

-30y + 35x

-20x -6y -30y +35x

35x - 20x -30y -6y

15x - 36y

Answer = 15x -36y

You might be interested in

What is equal to 7 x 98

alexdok [17]

Answer:

$\huge \colorbox{red}{Question}$

What is equal to 7 x 98

️‍️️‍️

️‍️

️‍️️‍️

$\huge \colorbox{green}{✍ Answer}$

7 × 98

7 × 98 = 686

7 0

3 years ago

Parallel to y = 2x – 5 going through (-6, 1)?

vovikov84 [41]

Answer:

y=2x+13

Step-by-step explanation:

Gradient of parallel lines are equal and in the equation,y=2x-5, 2 represents the gradient.

Therefore the gradient of the other line will also be 2.

Introduce another point (x,y) and then equate using the gradient as follows:

y-1/x--6=2

y-1/x+6=2

Cross multiplication;

(y-1)=2(x+6)

y-1=2x+12

y=2x+12+1

y=2x+13

5 0

3 years ago

Annabelle and Navene are multiplying (4 to the power of 2•7 to the power of 5)(4 to the power of3•7 to the power of 2).

lyudmila [28]

$\bf (4^27^5)(4^37^2)\implies 4^27^54^37^2\\\\\\ 4^24^37^57^2\implies 4^{2+3}7^{5+2}\implies 4^57^7$

6 0

3 years ago

Solve equation 3X+2(-2X+3)=50

marta [7]

3x + 2(-2x + 3) = 50 |use distributive property

3x - 4x + 6 = 50

-x + 6 = 50 |subtract 6 from both sides

-x = 44 |change signs

x = -44

3 0

3 years ago

Simplify the following 5√3+2√27+1/√3

Sati [7]

Answer:

5√3+2√27+1√3

=5√3+2×3√3+1√3

=√3(5+6+1)

=12√3

7 0

3 years ago

Read 2 more answers