Answer:
a = (15-11b)/7
Step-by-step explanation:
19a + 11b = 12a + 15
Subtract 12a from each side
19a-12a + 11b = 12a-12a + 15
7a +11b = 15
Subtract 11b from each side
7a+11b-11b = 15 -11b
7a = 15-11b
Divide by 7
7a/7 = (15-11b)/7
a = (15-11b)/7
We know that measure angle PQS = 112 degrees.
From the drawing, we can see that:
measure angle PQR + measure angle RQS = measure angle PQS
72 + 10x = 112
10x = 112 - 72
10x = 40
x = 4
To solve this, you must determin variables.
Elliot=x
Amelia=5x-13
Then, you must do the sum of those two variables equals the number of cans. Therefore,
5x-13+x=257
6x-13=257
6x=257-(-13)
6x=270
x=270÷6
x=45
Answer:
1) x = 18 2) x = 7
Step-by-step explanation:
Edit: Decided to solve the second too! :)
1)
12/16 = x/(x+6)
12x + 72 = 16x
72 = 4x
x = 18
2)
(-4 + 4x)/64 = 27/72
-288 + 288x = 1,728
288x = 2,016
x = 7
