Answer:
The ordered pair is (2,3)
Step-by-step explanation:
we know that
If a system of equations has infinite solutions, then the equations are the same
we have
3ax+3y=5b -----> equation A
2x+y=5 ----> equation B
Multiply equation B by 3 both sides
3*(2x+y)=5*3
6x+3y=15 -----> equation C
Compare equation A and equation C
so
3ax=6x------> 3a=6 -----> a=2
5b=15 ------> b=3
The ordered pair is (2,3)
Answer:
Step-by-step explanation:
1. division to multiplication 4r
2. subtraction to addition m+15
3. division to multiplication 21/k or k/21
4. subtraction to addition m-16 or 16-m
5 multiplication to division 17/g or g/17
6 subtraction to addition p+24
Answer:
A = 140° B = 30° C = 10°
Step-by-step explanation:
3x + 135 = 180
3x = 45
x = 15°
2 X 15 = 30
1 X 15 - 5 = 10
<span>10x + 30(2) = 20(x + 2)
10x + 60 = 20x + 40
10x = 20
answer
x = 2 liters
So you would need 2 liters of the 10% solution to make the 30% solution 20%.</span>
