Please help me with both questions :(
1 answer:
Answer:
2.) $520
3.) less
Step-by-step explanation:
I'm going to assume that the interst is compoudning and is convertable once a year
The compound interest formula for interest compounding only once a year is as follows
plug in the numbers and get
3.) If the interest rate is lower at the credit union he would obvioulsy be paying less (assuming that this interest rate is convertable annually as well)
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Let, the number of bracelets be x and the number of necklaces be y.
Given, there are 120 pieces of jewellery which are bracelets and necklaces.
So we can write the equation, ....equation 1
Now given the price of bracelet = $7
So, the price of x bracelets = $ =$
Given, the price of necklace = $13.
So, the price of y necklaces = $ = $
The total amount for the jewellery given = $ 1080.
We can write the equation as,
....equation 2
Now from equation 1, we can write,
By substituting this value of x in equation 2, we will get,
Now we will move 840 to the right side by subtracting it from both sides. We will get,
We can get y by moving 6 to the other side by dividing it to both sides. We will get,
So we have got the number of necklaces = 40
Now we have,
So, the number of bracelets = 80
We have got the required answer here.