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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

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Number 18.

Rashid [163]

f(x) = -5/2x + 4

f(3) = (-5/2)(3) + 4

f(3) = -15/2 + 4

f(3) = -7.5 + 4

f(3) = -3.5

Answer: B. –3.5

4 0

3 years ago

Solve for c. 3 − 7c − 20c = 7(–7c − 19) + 14c c =

OleMash [197]

Answer:

$\boxed{c = -17}$

Step-by-step explanation:

$= > 3 - 7c - 20c = 7( - 7c - 19) + 14c \\ \\ = > 3 - 27c = ( - 7c \times 7) - (7 \times 19) + 14c \\ \\ = > 3 - 27c = - 49c - 133 + 14c \\ \\ = > 3 - 27c = - 35c - 133 \\ \\ = > 3 - 27c + 35c = - 133 \\ \\ = > 3 + 8c = - 133 \\ \\ = > 8c = - 133 - 3 \\ \\ = > 8c = - 136 \\ \\ = > c = - \frac{136}{8} \\ \\ = > c = - 17$

7 0

3 years ago

Read 2 more answers

The ratio of irises to The ratio of irises to roses in Nikki's garden is 2:5. She currently has 25 roses. She is planning to add

denpristay [2]

If the proportion of iris to roses in Nikki's garden is 2: 5, it means that for 25 roses: (2/5) = (10/25). Therefore to maintain the proportion by adding 20 roses: (2/5) = (18/45). The number of irises after the addition of roses will be 10 + 18 = 28 irises.

5 0

3 years ago

#9 please help I’ll give brainlylist in return

9966 [12]

Factored form: (-x-4) (x-6)
Standard form: y= −x^2 + 2x + 24
Zeros: -4, 6

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3 years ago

Generate and solve another division problem with the same quotient and remainder as the two problems below.explain your strategy

Andrew [12]

Answer:

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Step-by-step explanation: