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Illusion [34]
3 years ago
7

2x - 4 = -2 + 4x what is ×​

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
8 0

Answer:

-1 = x

Step-by-step explanation:

2x - 4 = -2 + 4x

add 2 to both sides

2x - 4 + 2 = -2 + 2 + 4x

2x - 2 = 4x

subtract 2x from both sides

2x - 2x - 2 = 4x - 2x

-2 = 2x

divide both sides by 2

-2/2 = 2x/2

-1 = x

Marat540 [252]3 years ago
4 0

Answer:

x = -1

Step-by-step explanation:

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Find the missing values in each row. Use the percent equation. A: Principal: $100 Interest rate: 5% Time in years: 3 Interest ea
ANEK [815]

Answer:

A.) 15

B.) 1 year

C.) $50

D.) 1.5%

Step-by-step explanation:

The percentage equation goes thus:

Interest earned = principal * rate * time

A)

Principal: $100 Interest rate: 5% Time in years: 3 Interest earned

Interest earned = $100 * 0.05 * 3

Interest earned = $15

B.)

Principa;" $500 Interest rate: 4% Time in years: interest earned: $20

Interest earned = principal * rate * time

20 = 500 * 0.04 * time

20 = 20 * time

Time = 20 / 20 = 1

Time = 1 year

C.)

Principal: Interest rate:10% Time in years: 7 Interest earned:$35

Interest earned = principal * rate * time

$35 = principal * 0.1 * 7

$35 = principal * 0.7

Principal = $35 / 0.7

Principal = $50

D.)

Principal: $200 Interest rate: Time in years:2 Interest earned: $6

Interest earned = principal * rate * time

$6 = $200 * rate * 2

$6 = $400 * rate

Rate = $6/$400

Rate = 0.015 = 1.5%

7 0
3 years ago
Which expression has a value of 12?<br> A. 3+32<br> B. 32 +23<br> C. (4+2)2<br> D. 42-32
alekssr [168]
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You collect the following data for explanatory variable A and response variable B:
wolverine [178]

Answer:

v

Step-by-step explanation:

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2 years ago
If x + y = x, show that x = 1.​
Alexxx [7]
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Suppose that we try to solve the matrix equation AX = B by using an inverse matrix, but find that even though the matrix A is a
Tanzania [10]

Answer:

  The system will be found to be inconsistent or dependent.

Step-by-step explanation:

The matrix A will have no inverse for two different reasons:

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