Step-by-step explanation:
40%=123
/2 = /2
20%=61.5
x5 = x5
100%=307.5
Answer:
(2, 18) or x = 2 and y = 18
Step-by-step explanation:
From substitution:
9x = 3x + 12
6x = 12
x = 2
y = 9x = 9 * 2 = 18
In the formula Volume of a cylinder: V=πr^2h to solve for x, the equation is r=√V/πh. To turn the orginal formula to r, divide both sides by π and do the same for h, then take ±√ from both sides. Finally, r is not negative so it will be positive.
Answer:
2nd option: n + 5n = 42
Step-by-step explanation:
Answer:
You have 4 friends
Step-by-step explanation:
Let's break our expression apart
- 3.5 is the cost of one peach
- 
is the number of peaches
So, the total cost of peaches is 
.
Now, the expression 
means that you are dividing the total cost of the peaches among you and your friends. The thing you are dividing by; in other words, the denominator of your fraction, 5, indicates how much you and your friends will pay for the total number of peaches.
Now, to find how many friends you have, you need to subtract 1 (you) from 5 (you and your friends):
Friends you have = 5 - 1
Friends you have = 4
We can conclude that you have 4 friends
