toastee357 toastee357

19-06-2021
Mathematics

contestada

If 4p + 3q + 2r = 3 and -4p - 2q - 2r = 4, then q = ?

(A) 0
(B) 2
(C) 3
(D) 4
(E) 7

Respuesta :

Leora03 Leora03

19-06-2021

Answer:

E

Step-by-step explanation:

Label the two equations:

4p +3q +2r= 3 -----(1)

-4p -2q -2r= 4 -----(2)

(1) +(2):

4p +3q +2r -4p -2q -2r= 3 +4

Grouping like terms together:

4p -4p +3q -2q +2r -2r= 7

Simplify:

q= 7

Answer Link

Otras preguntas

You invest $1,050.00 buying a stock in a company at $10.00/share. the shares increase in value by 13% the first year and decrease by 5% the second year. how muc

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Squares ABCD and EFGH share a common center on a co

A skyscraper in London, England, has a roof in the shape of a square pyramid. It's approximate dimensions are shown in the net. What is the surface area of the

Compose an essay of 750 words in which you offer your interpretation of a literary element (such as character, theme, imagery, or symbolism) in Kincaid “Girl”.

OF FASHION The fashion industry is an exquisite and compelling world of self-expression and style. Little do we know, the industry of glam and fashion can have

Select the three expressions that equal the area of the figure shown in square units.

Great Rebellion war explanation

area of a rectangle if the the length is 3 times an unknown value plus 2 and the width is the sum of the unknown value and 3.

paragraph in water pollution

What is the mass, in grams, of 6.64 moles of W?