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andrezito [222]
2 years ago
7

What is the solution to the linear equation? -12 + 3b - 1 = -5 - b

Mathematics
2 answers:
alexgriva [62]2 years ago
8 0

Answer:

b=2

Step-by-step explanation:

aniked [119]2 years ago
4 0
B = 2

Rearrange:
3b - 13 = -b - 5

Eliminate b from right side:
3b - 13 + b = -b - 5 + b

4b - 13 = -5

Eliminate 13 on the left:
4b - 13 + 13 = -5 + 13

4b = 8

Simplify:
8 / 4 = 2

b = 2
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"From 1990 to 2000 The population of city A rose from 12,000 to 28,000 and the population of city B rose from 18,000 to 24,000.
Virty [35]

Answer:

The year 1996

With population of both 21600

Step-by-step explanation:

From 1990 to 2000 = 10 years

So city A grew from 12000 to 28000 that is city A had an increase of 16000 in 10 years.

While city b grew from 18000 to 24000 , that's an increase of 6000 in 10 years to.

For city A

10 years= 16000

1 year = 16000/10

1 year = 1600

For city B

10 years = 6000

1 year = 6000/10

1 year = 600

So we are to find what year the both cities had same population.

12000 + x1600 = y

18000 + x600 = y

X is the year difference

Y is the population at that year

Eliminating y gives

6000= x1000

X= 6

If x is 6

18000+3600= y

21600= y

So 6 years + 1990 = 1996

4 0
2 years ago
Dakari makes 2 dozen jars of jam. The total weight of all of the filled jars is 211.2 ounces. When empty, each jar weighs 1.2 ou
Rzqust [24]

Answer:

Step-by-step explanation:

Total weight of all of the filled jars with jam = 211.2 ounces

When empty, each jar weighs 1.2 ounces

Total weight of 2 dozens of empty jar = 24 × 1.2 ounces

= 28.8 ounces

Total weight of jam in 2 dozens jar = Total weight of all of the filled jars with jam - Total weight of 2 dozens of empty jar

= 211.2 ounces - 28.8 ounces

= 182.4 ounces

The weight of jam in one jar = 182.4 ounces / 24 jars

= 7.6 ounces

The weight of jam in one jar = 7.6 ounces

3 0
2 years ago
Kellianne lined up the interior angles of the triangle along line p below.
Tanzania [10]

Answer:1,4,5,2

Step-by-step explanation:

4 0
2 years ago
The balanced scale represents the equation: 3x + 1 = x + 3
Afina-wow [57]

<u>Given</u>:

The given balanced scale is represented by the equation

3x+1=x+3 ----- (1)

We need to determine the process that balance the scale.

<u>Process to balance the scale:</u>

Given that the if one x block is subtracted from the right side and three numbered blocks are subtracted from the left side.

Thus, the equation (1) becomes

(3x+1)-3=(x+3)-x

        3x-2=3 ----- (2)

Now, to balance the scale, let us subtract one block x from the left side and subtract three numbered blocks from the right side.

Thus, the equation (2) becomes,

(3x-2)-x=3-3

        2x-2=0 ------ (3)

Thus, the equation (3) is the same as the equation (1).

Hence, the process required to balance the scale is to subtract one x block from the left side and subtract three numbered blocks from the right side.

Therefore, Option B is the correct answer.

6 0
2 years ago
Is 5/21 rational or irrational number ?
ZanzabumX [31]

Answer:

rational

Step-by-step explanation:

irrational numbers can not be expressed as a fraction

6 0
2 years ago
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