3 years ago

3x + 2y = 2 -2x + y = 8

Mathematics

1 answer:

iris [78.8K]3 years ago

8 0

The answer to this question is

x= -2 y= 4

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Which expressions are equivalent to 3(6+b)-(2b + 1)?

Anna [14]

Answer:

18+3b-2b-1

b+17

Step-by-step explanation:

$\mathrm{Using\:the\:distributive\:law}:\quad \:-\left(a+b\right)=-a-b$

$-\left(2b+1\right)=-2b-1$

$=3\left(6+b\right)-2b-1$

$=18+3b-2b-1$

$\mathrm{Group\:like\:terms}$

$=3b-2b+18-1$

$\mathrm{Subtract\:the\:numbers:}\:18-1=17$

$=3b-2b+17$

$\mathrm{Add\:similar\:terms:}\:3b-2b=b$

$=b+17$

[RevyBreeze]

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2 years ago

The sum of 4 consecutive number is 330 what is the sum of the largest and the smallest number

Drupady [299]

X + x + 1 + x + 2 + x + 3 = 330
4x + 6 = 330
4x = 324, x = 81
Smallest number: 81
Biggest number: 81 + 3 = 84
Sum: 81 + 84 = 165
The answer is 165

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2 years ago

What laws being modeled?

ELEN [110]

Answer:

law of contrapositive

Step-by-step explanation:

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2 years ago

Adam has $21 to spend on three pencils. After buying them he had $9. How much did each pencil cost?

Mice21 [21]

Answer:

Each Pencil Cost 4 Dollars

Step-by-step explanation:

First you can subtract 21 by 9 to get 12 dollars which shows how much he spent.

Second you can divide 12 by 3 to get 4 dollars spent. So he spent 4 dollars on each pencil.

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3 years ago

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What is the equation of this function after it is reflected over the x-axis?

erma4kov [3.2K]

Answer: F(x)=-(x+4)^3

That's it

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3 years ago