two savings accounts each start with a $200 principal and have interest rate of 5%. One account earns simple interest and the other is compound annually. Which account will earn more interest over 10 years? How much more?
Answers
Answer 1
Answer:
Formula for Simple Interest: I = PRT
P = Principal R = Interest rate per time period in decimal T = number of time periods
Now you just substitute: 200 x 0.05x 10 = $100 interest
Formula for Compound Interest: A = P(1 + r)^n
A = Final amount to which investment grows P = Principal r= interest rate per period as decimal n= number of corresponding periods
Substitute: 200(1 + 0.05)^10 = $325.80 (rounded)
Now compare and the compound interest earns more by $225.80
Determine whether the graph represents a proportional relationship. A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 10. Four points are shown on the graph on ordered pairs 0, 0 and 1, 3 and 2, 6 and 3, 7. These points are joined by a line. The label on the x-axis is Number of pans. The title on the y-axis is Number of cakes.
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propportinal means that the points are inproportion ratios 1:3=2:6=3:7 1/3=2/6=3/7 1/3=1/3=3/7 false therefor it is not poropoortional
another way is to graph the points and see if a straight line can go though all of them it can go thoruhg the first 3 but not eh 4th pont (3,7)
not proportional
Alice collected donations of $50, $125, $10, $210, $50, $24, and $175 for charity. What is the mean of her collections?
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Add all the amount collected $50+$125+$10+$210+$50+$24+$175=$644 then divide your answer by the number of people collected from $644/7=$92
644 divided by 7 equals 92 and 644 is the total and 7 are the amounts of donation so your answer is 92
What is 10M divided by 15K
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666.66666667 is the answer
666.6666666666667 is the answer
The ratio of pencils to erasers is 4:1 if there are 20 pencils how many erasers are there?
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it is 5 because you have to multiply by 5 by 4 and get 20 when you multiply by 5×1 and get 5
Make an equation to solve this problem:Barrys mountain bike weighs 6 pounds more than Andy's. If their bikes weighs 42 pounds altogether how much does barry's bike weigh? Identify the if-then moves in your equation.
Write a unit rate for the situation 250 words in 5 minutes
Answers
To write a unit rate we have to find out, something per something. Here we will find out how many words per min. TO do this we will divide the amount of words (250) by the amount of minutes (5). Lets do it:-
250 ÷ 5 = 50 50 words per min.
CHECK OUR WORK:-
50 × 5 = 250 We were RIGHT!!
So, a unit rate for the situation "250 words in 5 minutes" is 50 words per min.
Hope I helped ya!! xD
250 words in 5 minutes To find how many words per minute, divide 250 by 5. That would give you 50 words per minute. This would be a linear equation because there is a steady unit rate. The rate is 5 so the equation is y=5x Hope this helps.