Answer: x= 54
Step-by-step explanation:mathhhhh
Answer:
1.60 L of 10% solution
0.40 L of 35% solution
Step-by-step explanation:
If x = amount of 10% saline solution, and y = amount of 35% saline solution, then:
x + y = 2
0.10x + 0.35y = 0.15(2)
Solve with substitution:
0.10x + 0.35(2 − x) = 0.15(2)
0.10x + 0.70 − 0.35x = 0.30
0.40 = 0.25x
x = 1.60
y = 0.40
Step-by-step explanation:
Shes wrong because she did it in 3 hours which means she would have made 3 cards and not 9.
Answer:
19
Step-by-step explanation:
if you do the checker method then you would find that
they add up to make a line which equals 180
so... the equation is (8x-7)+(x+16)=180
do the math and x=19
The first equation because-20x goes to the other side and u divide 5 on both sides and when you simplify it gives you that
