A) 2
B) DNE
C) -2
I hope this answers your question but I’m not so sure of my answer!
Answer:
yes it is
Step-by-step explanation:
Answer:
I don't know
Step-by-step explanation:
but I feel like I've done that problem before lol.
Let the x ml of water be mixed with 237 ml of ammonia whose strength is 100%, in order to create a mixture of 75% strength.
The equation required to solve this will be:
237/(237+x)=75/100
solving for x we get:
237/(237+x)=3/4
237×4=3(237+x)
948=711+3x
3x+711=948
3x=948-711
3x=237
x=237/3
x=79 ml
therefore the amount of water to be added will be 79 ml
Answer:angle 1=90 angle 2=45 angle 3=45
Step-by-step explanation:
