2x+y=15
y=3x
I think it's substitution

Answers

Answer 1

Answer: $\left\{\begin{array}{ccc}2x+y=15\ny=3x\end{array}\right\n\nsubtitute:\n\n2x+3x=15\n5x=15\ \ \ \ |divide\ both\ sides\ by\ 5\n\boxed{x=3}\n\nsubtitute\ value\ of\$

Answer 2

Answer: $2x+y=15 \n 2x+3x=15 \n 5x=15 \n /5\ \ /5 \n x=3$
$y=3x \n x=3 \n y=3*3=9 \n y=9$

Related Questions

Please help ill give 10 points and a brainly to who ever who can answer this. thanks!!!
What is 5*5+100-99*76
Animal breeders maintain cat and dog breeds by the process of hybridization. Please select the best answer from the choices provided a. True b. False
Which of the following is the rational exponent expression of fifth root of 7 n?
Which situation explains how a credit becomes a debt?A) A buyer purchases furniture on credit, and then owes a debt to the furniture store. B) An electronics store extends credit to a buyer, and then owes a debt to the buyer. C) A mechanic exchanges services with a plumber, and incurs a debt to the plumber. D) A farmer purchases used equipment in exchange for a share of the crops grown.

The price of a pair of shoes increases from $51 to$69. what is the percent increase to the nearest percent?

Answers

Answer:

35%

Step-by-step explanation:

A large bag of cashews weight 8 1/3 pounds one seving is 1/3 pounds how many serving are in the bag

Answers

25 is the answer to this

Simplify the expression and write your answer as a complex number: 7√49 - √(-16).

Answers

Answer:

$\Huge \boxed{ \boxed{\boxed{\bf{49 - 4i}}}}$

Step-by-step explanation:

We'll start with the first term: $\large \boxed{\tt{√(49)}}$ . The square root of 49 is 7, so this term simplifies to $\boxed{\tt{7 * 7}}$ , which is 49.

Now let's simplify the second term: $\large \boxed{\tt{√(-16)}}$ . The square root of a negative number is not defined in the real number system, so we need to express it as a complex number. The square root of -16 can be written as 4i, where 'i' represents the imaginary unit (√(-1)). Therefore, √(-16) = 4i.

Now we can rewrite the expression with the simplified terms:

$\Large \boxed{\boxed{\bf{49 - 4i}}}$

So, the simplified expression, written as a complex number, is 49 - 4i.

#BTH1

__________________________________________________________

Oxfam America, Doctors Without Borders, and the Red Cross are examples of __________.a. IRBDs
b. IDAs
c. NGOs
d. IMFs

Which of the following countries is the largest shareholder in the World Bank?
a. Japan
b. France
c. the United States
d. the United Kingdom

Answers

Answer:

The correct answers are the option C to question number 1 and the option C to question number 2.

Step-by-step explanation:

Non-Governmental Organization, or NGO, is the name given to the organizations that are not under the control and direction of any government, therefore they are independent. Moreover, it is very common that they tend to be non-profit organization that focus on humanitarians and social aspects.

Oxfam America is an international confederation of 19 NGOs members whose main purpose is to fight against poverty and suffering in 90 countries.

Doctors Without Borders is an international humanitarian medical NGO whose main work has covered conflict zones and regions affected by endemic diseases helping those in need.

Red Cross is also an international humanitarian movement whose main focus is on protecting life and human health.

The World Bank is an international financial institution whose main purpose is to provides loans to poorer countries that need it for long run capital proyects which involves development and reconstruction most of the time. It is financed by the most powerful countries and its major shareholder is the United States, followed by Japan, China and other 17 members on the list.

number 1 is C.NGOs
number 2 is C. United States

Pick a product that might be packaged in the shape of a rectangular prism.Surface Area: S.A.=2lw+2wh+2lh
Volume: V=lwh

Choose an appropriate length, width, and height for your package so that it can fit the product you are shipping. Using these dimensions, what is the ratio of surface area to volume?

Answers

Let us assume the following units of measure:
Length = 10 inches
Width = 5 inches
Height = 8 inches

Surface area = 2lw + 2wh + 2lh
S.A = 2(10in * 5in) + 2(5in * 8in) + 2(10in * 8in)
S.A = 2(50in²) + 2(40in² + 2(80in²)
S.A = 100in² + 80in² + 160in²
S.A = 340 in²

Volume = lwh
V = 10 in * 5 in * 8 in
V = 400 in³

ratio of the surface area to volume?
340 in² / 400 in³ = 34 / 40 in = 17/20 in

Answer:

Product: Iphone 6s plus box

W= 3in L= 6in H= 3in

And then use the surface area equation ( SA = 2lw + 2wh + 2lh)

To get your volume use the equation ( V = lwh)

And then divide those two SA / V and you get your ratio

Task 1 complete!!

Read more on Brainly.com - brainly.com/question/3948720#readmore

Step-by-step explanation:

How do you write the following expanded number in standard notation?10,000,000 + 500,000 + 3,000 + 90 + 7

10,503,970
10,503,097
1,503,097
10,053,097