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3 years ago

Solve the simultaneous equation y+x=42y-x=5

Business

1 answer:

beks73 [17]3 years ago

6 0

Answer:

<h2>Value of X = 1</h2>

<h2>Value of y = 3</h2>

Solution,

Using substitution method,

y + x = 4

Move 'x' to the left hand side and change its sign:

y = 4 - x --------> equation (i)

Now,

2y - X = 5

putting the value of y from equation (i)

2( 4 - x ) - X = 5

8 - 2x - x = 5

8 - 3x = 5

- 3x = 5 - 8

- 3x = - 3

The difference sign (-) will be cancelled in both sides

3x = 3

3x/3 = 3/3

X = 1

Value of X is 1

Now, replacing the value of X in equation (i)

y = 4 - x

= 4 - 1

= 3

Value of y is 3

Hope this helps...

Good luck on your assignment...

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3 years ago

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3 years ago

Read 2 more answers

Malone Imports stock should return 12 percent in a boom, 10 percent in a normal economy, and 2 percent in a recession. The proba

Rufina [12.5K]

Answer:

6.11%

Explanation:

For computing the variance, first we have to determine the expected return which is shown below:

= (Expected return of the boom × weightage of boom) + (expected return of the normal economy × weightage of normal economy) + (expected return of the recession × weightage of recession)

= (12% × 5%) + (10% × 85%) + (2% × 10%)

= 0.6% + 8.5% + 0.2%

= 9.30%

Now the variance would equal to the

= Weightage × (Return - Expected Return) ^2

For boom:

= 5% × (12% - 9.3%) ^2

= 0.3645

For normal economy:

= 85% × (10% - 9.3%) ^2

= 0.4165

For recession:

= 10% × (2% - 9.3%) ^2

= 5.329

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= 0.3645 + 0.4165 + 5.329

= 6.11%

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3 years ago

San Ruiz Interiors provides design services to residential and commercial clients. The residential services produce a contributi

Georgia [21]

Answer:

San income will decrease by $70,000

so correct option is D. decrease by $70,000

Explanation:

given data

contribution margin = $520,000

fixed operating costs = $550,000

Decrease fixed operating costs fall = $450,000

solution

as if residential operations are closed

we find here Decrease in income

Decrease in income = contribution margin - Decrease of fixed operating costs ........................1

Decrease in income = $520,000 - $450,000

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so that San income will decrease by $70,000

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3 years ago

Solve the simultaneous equation y+x=42y-x=5​

Solve the simultaneous equation y+x=42y-x=5