forschkolltttt forschkolltttt

13-03-2020
Mathematics

contestada

(14 points)
use an appropriate method (SUBSTITUTION or ELIMINATION)

12x+10y-30
3x+2y=-3

14 pointsuse an appropriate method SUBSTITUTION or ELIMINATION 12x10y303x2y3 class=

Respuesta :

adkinsmike663 adkinsmike663

15-03-2020

Answer:

Y=21

Step-by-step explanation:

12x+10y=30

-4(3x+2y=-3)

-12-8y=12

12x+10y=30

-12-8y=12

2y=42

y=21

Answer Link

Otras preguntas

Amy raised £n for charity. Chris raised £18 more then any. The mean amount raised by the two of them is £45. Work out how much money each one of them raised

what is 12minus 2 multiply 6 plus 2 divide by 2

round to the nearest hundredth 5.6192

Which of the following steps is not critical in the creation of Bt corn?a.Cut out a piece of DNA from a DNA molecule.b.Splice a piece of DNA into DNA from anoth

What's the other term for: one who overindulges in food and drink

Which expression is equivalent to 27/125

write in decimal form fourteen and eighty-Four hundredths

a subway train starts from rest at a station and accelerates uniformly at 1.8m/s^2 for 15 sec. then it runs at a constant speed for the next 35 sec. before dece

name a metal that doesn't conduct electricity

Choose the more precise measurement in the pair. A .) 6.7 mi or B.) 6 mi