MATHEMATICS MIDDLE SCHOOL

you have $550 in a savings account that earns 3% simple interest each year . how much will be in your account in 10 years?

Answers

Answer 1
Answer:

Answer: $715


Step-by-step explanation:

Given : Principal amount (P)= $550

Interest rate (r)= 3%=(3)/(100)=0.03

Time period (t) =10 years

WE know that the formula of simple interest is

S.I.=P\cdot\ r\cdot\ t

\n\Rightarrow\ S.I.=550\cdot0.03\cdot10\n\Rightarrow\ S.I.=\$165

Now, the total amount in account after 10 years = Principal+ S.I.

Therefore, the total amount in account after 10 years =\$550+\$165=\$715
Answer 2
Answer: In 10 years that'd be .3% interest, so just multiply it by 550. Then add your answer to 550. So your answer would be 665.

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What is the difference between Partial Product and Regrouping? Describe.

Answers

Partial Product is for multiplication and regrouping is for addition. 

Hope that helped:)

Add.–4.75 + 2.19



A.


–6.94


B.


–2.56


C.


2.56


D.
6.94

Answers

–4.75 + 2.19

The easiest way to do this (in my opinion) is to switch signs: 
4.75 - 2.19: 

  4.75
 -2.19
=2.56

Finally, put the - sign back to get 
-2.56

The answer is B.

Answer:

its -2.56

Step-by-step explanation: i used calculator

Ted earns 13 dollars an hour at a theater Last week he worked h hours at the concession stand and 3 times as many hours at the ticket stand Write and simplify an expression for the amount he earned last week.

Answers

13h+13(3*h)= amount earned

Select the quadratic that has roots x = 8 and x = -5.
What is the answer

Answers

Answer:

x^2 - 3x - 40

Step-by-step explanation:

x = 8 and x = -5

x - 8 = 0 and x + 5 = 0

(x - 8)(x + 5)

x^2 + 5x - 8x - 40

x^2 - 3x - 40

Answer:  x^2 - 3x - 40

keith spent 60% of jis birthday money at the mall. If he spent $24 at the mall, how much money did Keith receive for his birthday

Answers

24 x 100 = 2400

2400 divided by 60 = 40

Keith got $40 for his birthday.
We know that Keith spend 60% of his money, or $24
60% = $24
To find 100%, we must first find 10%
To get from 60% to 10%, we divide by 6
Do the same to the other value
$24 / 6 = $4
10% = $4
To find 100%, we now multiply by 10
$4 x 10 = $40
Keith received $40 for his birthday

Use the circle graph to determine how many hours per day Becky spends on each activity.School:____ Hours School= 25%
Eating:_____Hours Eating= 10%
Sleep:______Hours Sleep: 40%
Homework:____Hours Homework= 10%
Free Time:_____ Hours Free Time= 15%

Answers

404 error: graph not found

anyway, the graph was not included. since the sleep time was included, I will assume that the circle graph is worth 24 hours

all we need to do is to convert the percentages to fractions and multiply that by 24 to find out how many hours per activity


percent means parts out of 100 so x%=x/100


so we have
School
Eating
Sleep
Homework
Free Time

School=25%
25%=25/100=1/4
1/4 times 24=6
School: 6 hours


Eating=10%
10%=10/100=1/10
1/10 times 24=2.4
Eating: 2.4 hours


Sleep=40%
40%=40/100=4/10=2/5
2/5 times 24=48/5=9.6
Sleep: 9.6 hours


Homework=10%
10%=10/100=1/10
1/10 times 24=2.4
Homework: 2.4 hours


Free Time=15%
15%=15/100=3/30
3/20 times 24=72/20=36/10=3.6
Free Time: 3.6 Hours

Answers:
School: 6 hours
Eating: 2.4 hours
Sleep: 9.6 hours
Homework: 2.4 hours
Free Time: 3.6 Hours
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