Answer:
Whatever you do to one side you must do it to the other side of the equation.
Step-by-step explanation:
Hello!
To solve this, first assume all the coins are $1. Then, find the value that would have. 1 * 21 = $21.
Now, see how far away from $30 we are. 30 - 21 = 9. Therefore, we need an increase by $9.
For each coin changed from a $1 to a $2, how much of an increase is there? $1. Therefore, change 9 coins to $2 coins to have an increase of $9. If he has 9 $2 coins, he'll have 21 - 9 $1 coins, or 12.
Therefore, your final answer is 12 $1 coins and 9 $2 coins.
Hope this helps!
Answer:
152
Step-by-step explanation:
We need to find how many people like dogs but not cats. We can see that 152 people wrote that they like dogs. The other options were that they liked cats, both or neither. So we can assume that the 152 people that picked dogs do not like cats as there is no other option. So this is the answer. Also, you can create a venn diagram with this.
Hope this helped. Brainliest answer would be grateful
Answer:
Volume of the right circular cone = 1188.79 cubic inches
Step-by-step explanation:
Height of the cone = 17.1 inch
Circumference of the cone= 16.3 inches
Radius = 16.3/2
= 8.15 inch
Volume of the cone is:
As, 
Volume of the cone
Volume of the right circular cone is 1188.79 cubic inches
