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3 years ago

4x-y=18 6x+4y=38 me ajudem

Mathematics

1 answer:

allsm [11]3 years ago

7 0

Y =14 in the first equation , and in the second equation its y=8

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Show the number 154 in two other ways

rewona [7]

Answer:

Step-by-step explanation:

one hundred fifty-four

2 * 7 * 11

2 * 77

7 * 22

11 * 14

$\sqrt{23,716}$

$\frac{308}{2}$

Not 100% sure what you're asking for, but all these will equal 154.

7 0

3 years ago

If the rate of inflation is 3.9% per year, the future price p(t) (in dollars) of a certain item can be modeled by the following

KonstantinChe [14]

The current price of the item is $2500 and the price 10 years from today is $3665. 2.

Given exponential function

p(t) = 2500 × (1.039)^t

where t is the number of years from today.

Rate of inflation is 3.9% per year

The computation of the current price of the item and the price 10 years from today is shown below:-

p(t) = 2500 × (1.039)^t

Now, the current price can be found by putting t = 0

p(0) is

p(0) = $2500 \times (1.039)^{0}$

= 2500

The price 10 years from today can be found by putting t = 10

p(10) is

p(10) = $2500 \times (1.039)^{10}$

= 2500 × 1.466

= 3,665.181

Rounding to nearest dollar

= $3665. 2

The current price of the item is $2500 and the price 10 years from today is $3665. 2.

Find out more information about current price here

brainly.com/question/20709139

#SPJ4

3 0

1 year ago

If two lines are perpendicular, which statement must be true? A) The product of their slopes is 1. B) Their slopes are opposites

castortr0y [4]

If two lines are perpendicular, the statement that must be true is : D. The product of their slopes is -1

Lets say that a line has a slope of 2, the line which perpendicular to that line would have a slope of -1/2

Which means, the product would be 2(-1/2) = -1

hope this helps

4 0

3 years ago

N + 9 >_ 13 (with the “_” under the “>”

Step2247 [10]

Answer:

n >_ 4

Step-by-step explanation:

move 9 to the other side

n >_ 13 - 9

n >_ 4

8 0

3 years ago

Read 2 more answers

A vegetable garden is in the shape of a parallelogram with the dimensions shown.Parallelogram A B C D is shown. The length of A

olga55 [171]

Answer:

t needs 68 feet to enclose the garden.

Step-by-step explanation:

In this problem, we are to solve the sides of a parallelogram ABCD to know the measurement to enclose a garden.

Take note that a parallelogram has two equal lengths and two equal widths. Let us assume that the parallelogram AB = CD is the length and AD = BC is the width.

Solving the problem

First, let us solve for r using the condition AD = BC

AD = BC

3r + 8 = 2r + 12

Simplify the equation

3r - 2r = 12 - 8

r = 4

Next, let us substitute the value of r to AB, BC, CD, and AD.

For AB:

AB = 4r - 2

AB = 4(4) - 2

AB = 16 - 2 = 14

For BC:

BC = 2r + 12

BC = 2(4) + 12

BC = 8 + 12 = 20

For AD:

AD = 3r + 8

AD = 3(4) + 8

AD = 12 + 8 = 20

For CD:

But AB = CD Therefore, CD = 14

Finally, let us solve the perimeter of the parallelogram

Perimeter = AB + BC + CD + AD

Perimeter = 14 + 20 + 20 + 14

Perimeter = 68 feet

Therefore, the fencing needed to enclose the garden is 68 feet.

To learn more, just click the following links:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers