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julsineya [31]
3 years ago
5

I need some help... Algebra Hw

Mathematics
2 answers:
Neko [114]3 years ago
8 0

Answer:

Step-by-step explanation:

2.A

Len [333]3 years ago
7 0

Answer:

1. x = 4, y = 1

Graph: (See the attachment)

Step-by-step explanation:

x + 2y = 6

x - y = 3

x + 2y = 6

x = -2y + 6

x - y = 3

-2y + 6 - y = 3

-3y + 6 = 3

-3y = -3

y = 1

x = -2y + 6

x = -2 ( 1 ) + 6

x = 4

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beks73 [17]
Hello. I do not know this answer on the spot. But there is an app called mymath and you can download it on any apple or android device that will give you the answer to any of the variables in the equation. Hope it helps
4 0
3 years ago
Which expression is equivalent to 1/4 x + 3 - 1/3 x + (-2) ?
nasty-shy [4]

Answer:

The value of your expression is 7/12x +1.

Step-by-step explanation:

 1/4x + 3 - 1/3x + -2              First, positive and negative is negative

= 1/4x + 3 - 1/3x -2                 Combine like terms, 1/4x and 1/3x

= 7/12x + 3 - 2                          Combine like terms, +3 and -2

= 7/12x +1

Like terms are when a number have similar exponents bases, variables or just plain numbers.

3x, 4x, 5x

1.02x^2, 1.02x^3

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6 0
3 years ago
12.8 x 3/4 I don’t know it
scoray [572]

48/5 or 9 3/5

12.8/1 x 3/4 = 38.4/4

Or multiply 12.8/1 by 10 ==> 128/10

128/10 x 3/4 = 384/40

Hope this helps!

7 0
2 years ago
Read 2 more answers
A newborn baby has about 26,000,000,000 cells. An adult has about 4.94 × 10 to the power of 13 cells. How many times as many cel
monitta

Answer:

use some propoerties of exponnets

(x^m)/(x^n)=x^(m-n)

so

convert every body to scientific notation

(number less than 10 but equal to or greater than 1) times (10^x)

baby=26,000,000,000

how many decila places to move to left to make less than 10 but equal to or great than 1

10

there for it can be writtten as

2.6*10^10

how many times bigger is adult than baby

baby times x=adult

divide adult by baby with the numbers

x==

times  =

1.9 times 10^3

answer is 1.9*10^3

4 0
3 years ago
Read 2 more answers
9x+3y=6
antoniya [11.8K]

Answer:

+3y=6 Y+ 4 =4/3x -3 Y+4= 1/3(x-6) X+3y= 9 -2x + y= -3 3x-2y=12 X - 2y = 6 Y = 3/4 x+3 ^ 3/4

5 0
3 years ago
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