Answer:
the interest rate is .68% per year
Step-by-step explanation:
You deposit $4000 into a bank account and received $9 simple interest after 4 months. The interest rate was 0.68% per year.
Explanation:
STEP 1: Convert 4 months into years.
STEP 2: Find interest rate by using the formula , where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. $9, P = $4000 and t = 0.3333 years, so
Answer:
7.69
Step-by-step explanation:
You can set those two equations equal to each other and then solve.
4/5x -3 = -1/2x + 7
I can tell you the steps to graph them.
The easiest one is d(t) = 4t; this graph has a slope of 4 and a y-intercept of 0.
The first point you will plot is a point at the origin. From this point, count up four and then right 1 and plot another point. Count up 4 and right 1 again and plot a point. Now use a straight edge and draw a line through the points. Be sure to put arrows on the end of the line.
d(t) = 3t + 1.5; this graph has a slope of 3 and a y-intercept of 1.5. The first point to plot is a point on the y-axis at 1.5 (in the middle of 1 and 2). from this point count up 3 and then right 1 and plot a point, do this again two more times and then draw another line. Remember these points will be between the lines since we are counting on the halves.
I hope this helped.
You need to know the cost per ounce, or how many cents per one ounce, and the best buy is the 14-ounce bottle.
Answer: There are 32 dogs and 1 Parrot
Step-by-step explanation: I had a question like this in a math class. What you first do is to recognize that- parrots have 2 legs and dogs have 4. We can do 130/2 = 65 and 130/4= 32.5. Now we know that if there was only one animal, there would be 65 parrots, and 32 dogs- one with half of the legs. Since there is a .5 for the dogs, if we put in one parrot, it would mean that there is exactly 130.
(32 x 4)+(2x1) = 130. There are 32 dogs and 1 Parrot. I hope this answer is ✅ and helps, i just joined the community and this is the first person I answered. Good Luck!!
