Josuesantiago84 Josuesantiago84

01-06-2018
Mathematics

contestada

Solve the system of equations 2r + 2s = 50 and 2r – s = 17. A. r = 3, s = 11 B. r = 25, s = 33 C. r = 14, s = 11 D. r = –8, s = 33

Respuesta :

alarisaT alarisaT

01-06-2018

[tex]2r = 17 + s = 50 - 2s \\ 3s = 50 - 17 = 33 \\ s = 11 \\ \\2 r = 50 - 2s \\ 2r = 50 - 2 \times 11 = 50 - 22 = 28 \\ r = 14[/tex]

C. r=14, s =11

Answer Link

Otras preguntas

what is 62.6 rounded to the nearest tenth

What is the range of {(1, 2), (3, 4), (5, 6)}?

what is 9/25 as a decimal terminating or repeating decimal

a gardener has 27 pansies and 36 daisies he plants an equal number of each type of flower in each row what is the greatest possible number of pansies and daisie

write 2,000,000,000 + 70,000,000 + 100,000 + 3,000 + 800 + 10 in standard form.

43.586 rounded to the nearest tenth

an airplane climbs at a rate of 66.8 feet per minute. It descends at twice the rate that it climbs. Assuming it descends at a constant rate, how many feet will

What is 25.2<1.5y+1.2

What is the greatest common factor of 42,84,and 105 and how do you find it

A meal of a chicken sandwich and some pasta salad had 150 grams of carbohydrates. The pasta salad had 30 grams more than twice the grams of carbohydrates in the