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Lina20 [59]
3 years ago
12

Part A

Mathematics
1 answer:
telo118 [61]3 years ago
6 0

<em>Answer: </em>

<em>Elena's running speed is 5 miles/hour </em>

<em>Explanation: </em>

<em>The speed is defined as the covered distance per unit time </em>

<em>In the problem, we have: </em>

<em>The distance covered is the length (circumference) of the circular track which is given as  of a mile. </em>

<em>We are also given that she completes each lap (she completes  of a mile) in  of an hour </em>

<em> </em>

<em>To get her speed, we will divide the distance covered by the time taken to cover this distance </em>

<em>This is done as follows: </em>

<em>speed =  miles/hour </em>

<em>This means that: </em>

<em>Elena can run 5 miles each hour</em>

By shesney <3

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Pls answer 5a b and c for brianlist
melomori [17]

5.a) Steve - 60=5×12

= <u>5×3×2×2</u>

5.b) Ian - 60=6×10

= <u>3×2×5×2.</u>

<u>Discussion</u> - The prime factors reduce to the same numbers in both Steve's and Ian's case.

5.c) Case 1 of 48 = 6×8

= <u>3×2×2×2×2.</u>

Case 2 of 48 = 12×4

= <u>2×2×3×2×2.</u>

7 0
3 years ago
1. In order to save for her high school graduation, Kathrina decided to save ₱200 at the end of every other month, starting the
max2010maxim [7]

Answer:

1) 202.52

2) P107089

Step-by-step explanation:

Compound interest is calculated as

A = P (1 + r/n)^(nt), where

A = compounded interest

P = present value

r = interest

n = number of times interest applied

t = time taken

A = 200 (1 + 0.25%/30)^(30 * 5)

A = 200 (1 + 8.3*10^-5)^150

A = 200 * 1.0126

A = 202.52

Present Value Annuity Due is usually given by the formula

P = c*((1-(1+ i)^(-n))/i)*(1 + i ), where

P is the present value

C is the Cash flow per period

i is the interest rate and

n is the number of payments

P = 10000*((1-(1+ 12/1200)^(-1*12))/(12/1200))*(1+12/1200)

P = 113676

Also, it's worthy of note that

Effective Annual Rate = [(1 +stated rate/no. of compounding periods) ^no of compounding periods - 1]* 100

EAR = ((1+12/(12*100))^12-1)*100

EAR = 12.68%

And lastly, the

Future value = present value*(1+ rate)^time

113676 = Present value*(1+0.1268)^0.5

Present Value = 113676 / 1.1268^0.5

Present Value = 113676 / 1.0615

Present value = 107089

5 0
3 years ago
A right cylinder is sliced parallel to its base.
Marat540 [252]

Answer:

The answer is a circle. Sorry if it is too late to help you. Maybe it will help someone else.

Step-by-step explanation:

I just took a test with the same question. Proof of right answer is attached.

5 0
2 years ago
Read 2 more answers
2h divided by 15 equals 20
Lynna [10]
<span>(2*h)/15 = 20 // - 20

(2*h)/15-20 = 0

2/15*h-20 = 0 // + 20

2/15*h = 20 // : 2/15

h = 20/2/15

h = 150

h = 150</span>
8 0
3 years ago
In august Janet's clothing store sold 234 shirts with the ratio of short sleeves to long sleeves being 9:4. how many short sleev
makvit [3.9K]
162 short sleeve shirts; if you add 9 and 4, you get 13. Then, divide 234 by 13, which equals 18. 18 multiplied by 9 is 162.
3 0
3 years ago
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