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3 years ago

Find the area of a circle with a diameter

2 answers:

6 0

To get the answer divide the diameter by two, so you can get the radius. So plug it into the formula A=π 8²=π (8²)=64π =200.96 and for multiplying pie I just used 3.14 instead the entire number so I could get it by having the decimal in the hundredths place.

koban [17]3 years ago

6 0

64 pi. Half of 16 is 8 and 8 squared is 64.

You might be interested in

Calculate 177537+87439-19673

nadezda [96]

Answer:

See below.

Step-by-step explanation:

Following order of operations:

177537+87439=264976

264976-19673=245303

So, 177537+87439-19673 is equal to 245303.

-hope it helps

8 0

2 years ago

3(t-2)<br> Expand equation

MissTica

Answer:

$3(t - 3) \\ 3t - 9$

this is your answer

8 0

3 years ago

Read 2 more answers

Solve the system by substitution 2x+2y= 50<br> y = 4x

Gnom [1K]

Answer:

(5,20)

Step-by-step explanation:

2x + 2(4x) = 50

2x + 8x = 50

10x = 50

10x/10 = 50/10x

x = 5

2(5) + 2y = 50

10+ 2y = 50

-10. -10

---------------

2y = 40

2y/2 = 40/2

y = 20

6 0

2 years ago

1. Lynn has learned that she will need to save $1 million dollars to support her current lifestyle if she

omeli [17]

Answer:

Given 40 years of time to plan in advance for retirement, Lynn would only need to save $25000 per year to end up with $1 million, which is attainable.

Step-by-step explanation:

Lets say that she starts planning for retire with 40 years in advance instead of just 15, if that is the case, then she would need to save $1.000.000/40 = $25.000 per year, which is a pretty big ammount but it is much more attainable than $67000, since it is only a third of her annual income.

8 0

3 years ago

Michael's bank contains only nickels, dimes, and quarters. There are 57 coins in all, valued at $4.55. The number of nickels is

jeka94

Answer:

10 dimes.

Step-by-step explanation:

Let n represent number of nickels, d represent number of dimes and q represent number of quarters.

We have been given that there are 57 coins in all. We can represent this information in an equation as:

$n+d+q=57...(1)$

We are also told that the value of all coins is $4.55. We can represent this information in an equation as:

$0.05n+0.10d+0.25q=4.55...(2)$

The number of nickels is 7 short of being three times the sum of the number of dimes and quarters together. We can represent this information in an equation as:

$n+7=3(d+q)...(3)$