C + b = 72......because the is a total of 72 cans and bottles
1c + 2b = 92.....because each can is worth $ 1 and each bottle is worth $ 2....c is the number of cans and b is the number of bottles...and she collected $ 92
so ur system is :
c + b = 72
1c + 2b = 92
Answer:
0
Step-by-step explanation:
9 - 2b + 6 = -3(b+5) + 4b
15 - 2b = -3b - 15 +4b
15 - 2b = -15 + b
` move -15 over to the right and -2b to the left `
0 = -b
Answer:
In all, she walked 15 miles. (1 x 12) / 4 = 12/4 = 3, 12 + 3 = 15
Answer:
3x + 4y = -1
3x + 4y + 1 = 0
Step-by-step explanation:
-2x -4 = 2
x + 2y + 1 = 0
Sum of two consecutive terms is 145
let the numbers be the nth and (n+1)th term
nth term = 5n+10
(n+1)th term = 5(n+1)+10 = 5n+5+10 = 5n+15
5n+10 + 5n+15 = 145
⇒ 10n + 25 = 145
⇒ 10n = 145-25 = 120
⇒ n = 120/10 = 12
terms are:
5n+10 = 5 x 12 + 10 = 70
5n + 15 = 5 x 12 + 15 = 75