bryson15 bryson15

Today at 5:39 PM
Mathematics

Answered

Solve the system using elimination. 3x + 3y = –9 3x – 3y = 21

A. (–5, 2)

B. (3, –6)

C. (2, –5)

D. (3, 3)

Answer :

Аноним Аноним

Today at 5:44 PM

3x + 3y = –9
3x – 3y = 21
-----------------add
6x = 12
x = 2

3x + 3y = –9
3(2) + 3y = -9
6 + 3y = -9
3y = -15
y = -5

x = 2 and y = -5

answer: C. (2, –5)

Answer Link

Other Questions

from the money model above and starting at point ffr1, ms1, which point would be the new (interest rate, quantity of money), from an increase in rgdp and purcha

alculate ph of: a pure buffer; a buffer to which a small amount of a strong acid or a strong base is added an aqueous solution of a strong acid or base an aqueo

1......Warrants exercisable at $25 each to obtain 30,000 shares of common stock were outstanding during a period when the average market price of the common sto

Pharoah Company manufactures equipment. Pharoah's products range from simple automated machinery to complex systems containing numerous components. Unit selling

which of the following statements danimal tissues develop from embryonic germ layers. triploblastic animals have three germ layers (ectoderm, mesoderm, and endo

all the mass of an atom is concentrated inthe nucleus

Why acne and pimpels are common in adolesecense

(b) which structure present in nuclear region that carry characteristics from one generationto next?

Find Charge on capacitor after one time charge becomes constant .

What does coal contain chemically

Jacoby is studying a population of diploid single-celled Eukaryotic parasites that live inside mouse blood cells. He finds that a gene, H, has two alleles, H1 a

the questions in this activity refer back to prelab 0, which would be a good place to look if you need any help. in test a, suppose you make 100 experimental me

Define a structure named StockItem with two string fields, supplier and productName and one int field, catalogNumber. Then define a structure named Customer wit

the following provides details on the building class. instance variables all instance variables must be specified as private instance variables. constructor the

point company paid $4,000 cash to purchase a new machine. the company also paid $500 cash for an initial training cost that was necessary to teach an employee h

a tariff levied on tomatoes produced in mexico and imported into the u.s. would decrease the price of domestic tomatoes and decrease revenues of growers but onl

given below is the correlation matrix for 11 different stocks. use the combination of index, match, and max functions to find the stock with the highest correla

The designers of a water park have sketched a preliminary drawing of a new slide. The length of the ladder is I - 40 feet, and its angle of elevation is 60 (seg

a survey was conducted with a large group of teenagers from 6 different states and it asked them for their favourite sport out of a large list of sports. the st

golden corporation's current year income statement, comparative balance sheets, and additional information follow. for the year, (1) all sales are credit sales,