All categories

2 years ago

Y = x + 2 2x - y = -4

Mathematics

1 answer:

mrs_skeptik [129]2 years ago

3 0

1.) X=-2

2.) 2x-y+4=0

Hope this helps! :))

You might be interested in

Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 10 percent simple interest per year.

Nostrana [21]

Answer:

<h2>$ 22200 in higher yielding bank and $ 44400 in lower yielding bank</h2>

Step-by-step explanation:

Jolene invests in two bank accounts. The first account gives a 4% interest per year and the second bank gives a 10% interest rate per year.

She puts twice as much in the lower yielding bank account. Let us denote the amount put in high yielding bank account by $x$ . Lower yielding bank account will have $2x$ .

$Interest\text{ }per\text{ }year=Principal\times Interest\text{ }rate$

Interest from lower yielding bank = $\dfrac{4}{100} \times 2x=\dfrac{8x}{100}$

Interest from higher yielding bank = $\dfrac{10}{100} \times x=\dfrac{10x}{100}$

Total Interest per year = $ 3996 = $\dfrac{8x}{100} +\dfrac{10x}{100}=\dfrac{18x}{100}$

$x=22200 \$$

∴ Jolene invested $ 22200 in higher yielding bank and $ 44400 in lower yielding bank.

4 0

2 years ago

What is 3x9x-5x=7#hh&

Paha777 [63]

move the 3 to the 7 side. it will become negative.

9x-5x=7-3

4x=4

x=1

7 0

3 years ago

-4y+4=10x standard form ik its 10x+4y=4 but you need to simplify more please help i need to get it in an hr

LuckyWell [14K]

Answer:

x= (2/5)-(2y/5) (Im not sure if this is what you need but this is the answer simplified)

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

7 0

2 years ago

Ashley is taking a road trip to visit her friend. She drives 87.5 miles before taking a break

DanielleElmas [232]

Answer:

112.5

Step-by-step explanation:

200 - 87.5 = 112.5

6 0

2 years ago

Find the integer that makes this subtraction statement true -3 - ? = -5

Elenna [48]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{2}}}}}$

Step-by-step explanation:

Let the missing integer be x

Solve for x

$\sf{ - 3 - x = - 5}$

Move 3 to right hand side and change it's sign

$\dashrightarrow{ \sf{ - x = - 5 + 3}}$

The negative and positive integers are always subtracted but posses the sign of the bigger integer

$\dashrightarrow{ \sf{ - x = - 2}}$

Change the signs of both sides

$\dashrightarrow{ \boxed{ \sf{x = 2}}}$

Hope I helped!

Best regards! :D

7 0

3 years ago