Answer:
69.08
Step-by-step explanation:
π×d
3.14×22=69.08
Answer:
60
Step-by-step explanation:
Answer:
THE ANSWER is ur mom
Step-by-step explanation:
lol im REPORTING YOU :)
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
