% = rate
70/350 x 100 % = 0.2 x 100% = 20%
20 Is your answer :)
Using a system of equations, it is found that:
- The cost of a health bar is of $1.
- The cost o a health drink is of $2.
<h3 /><h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- Variable x: Cost of a health bar.
- Variable y: Cost of a health drink.
You buy 4 health bars and 3 health drinks for $10, hence:
4x + 3y = 10.
Your friend buys 6 health bars and 2 health drinks for $10, hence:
6x + 2y = 10
2y = 10 - 6x
y = 5 - 3x.
Replacing on the first equation:
4x + 3y = 10
4x + 3(5 - 3x) = 10
-5x = -5
5x = 5
x = 1
Then:
y = 5 - 3x = 5 - 3 = 2.
- The cost of a health bar is of $1.
- The cost o a health drink is of $2.
More can be learned about a system of equations at brainly.com/question/24342899
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Answer:
$160
Step-by-step explanation:
The bicycle costs the owner of the store 100% of its price.
He then adds 45% of that amount to the cost of the bicycle to come up with the selling price. It is this increase of 45% that is called a 45% markup.
100% + 45% = 145%
The bicycle's selling price is 145% of what it cost the store owner.
Let the original cost be x.
145% of x = $232
1.45x = 232
x = 232/1.45
x = 160
Answer: $160
X=44x36/72
X=22
f=12x4/3
f=16