MATHEMATICS MIDDLE SCHOOL

In the situation, simple interest is calculated yearly. How much interest was earned? Drag and drop the answer into the box. Principal: $8000; Time: 4 years; Interest rate: 12%; Interest: ?

Answers

Answer 1
Answer:

Answer:

The simple interest be $3840 .

Step-by-step explanation:

Formula

Simple\ interest = (Principle* time* rate)/(100)

As

Principal = $8000

Time = 4 years

Interest rate =12%

Put value in the above formula

Simple\ interest = (8000* 4* 12)/(100)

Simple\ interest = (384000)/(100)

Simple interest = $3840

Therefore the simple interest be $3840 .
Answer 2
Answer:

Answer: $3840

Step-by-step explanation:

We know that the formula to calculate simple interest is given by :-

S.I=Prt

Given: Principal (P): $8000

Time (t): 4 years

Interest rate (r): 12% =0.12

Now, the simple interest earned is given by :-

S.I=8000*0.12*4\n\n\Rightarrow\ S.I.=\$3840

Hence, Simple interest was earned = $3840

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Answers

Answer:

y-intercept: (0,3); x-intercept: (12,0)

Step-by-step explanation:

The y-intercept is in a line where x = 0, so to find it, you can plug in 0 for x in the equation.

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Ten years ago the population was 249,583 currently 318,270 about by what percent has population grown in ten years?

Answers

Answer:

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Step-by-step explanation:

A haircut cost $20.Sales tax is 4.75%.Is $25 sufficent to cover the haircut with tax and a 15% tip?

Answers

no it wouldn't if I am wrong I am sorry

Answer:

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Step-by-step explanation:

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Answers

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Solve each system using elimination PLEASE HELP!!!1.8X+5Y=6
3X-2Y=10
2.-3x+8y=10
5y+6y=80
3. 4x+12y=-24
3x-6y=-18
4.5x-6y=48
2x+5y=-3
please help show all work

Answers

1.
8x+5y=6 \ \ \ |* 2 \n3x-2y=10 \ \ \ |* 5 \n \n16x+10y=12 \n\underline{15x-10y=50} \n16x+15x=12+50 \n31x=62 \ \ \ |/ 31 \nx=2 \n \n3x-2y=10 \n3 * 2-2y=10 \n6-2y=10 \ \ \ |-6 \n-2y=4 \ \ \ |/ (-2) \ny=-2 \n \n(x,y)=(2,-2)

2.
-3x+8y=10 \ \ \ |* 5 \n5x+6y=80 \ \ \ |* 3 \n \n-15x+40y=50 \n\underline{15x+18y=240 \ \ } \n40y+18y=50+240 \n58y=290 \ \ \ |/ 58 \ny=5 \n \n5x+6y=80 \n5x+6 * 5=80 \n5x+30=80 \ \ \ |-30 \n5x=50 \ \ \ |/ 5 \nx=10 \n \n(x,y)=(10,5)

3.
4x+12y=-24 \n3x-6y=-18 \ \ \ |* 2 \n \n4x+12y=-24 \n\underline{6x-12y=-36} \n4x+6x=-24-36 \n10x=-60 \ \ \ |/ 10 \nx=-6 \n \n3x-6y=-18 \n3 * (-6)-6y=-18 \n-18-6y=-18 \ \ \ |+18 \n-6y=0 \ \ \ |/ (-6) \ny=0 \n \n(x,y)=(-6,0)

4.
5x-6y=48 \ \ \ |* 2 \n2x+5y=-3 \ \ \ |* (-5) \n \n10x-12y=96 \n\underline{-10x-25y=15} \n-12y-25y=96+15 \n-37y=111 \ \ \ |/ (-37) \ny=-3 \n \n2x+5y=-3 \n2x+5 * (-3)=-3 \n2x-15=-3 \ \ \ |+15 \n2x=12 \ \ \ |/ 2 \nx=6 \n \n(x,y)=(6,-3)
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