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nataly862011 [7]
3 years ago
11

Kayla wants to determine her typical heart rate after sprinting 100 meters. Which of the following methods will give her the mos

t accurate measurement? Sprint the 100 meters several times throughout the week and determine her average heart rate from the various runs. Sprint the 100 meters several times throughout the day and determine her average heart rate from the various runs. Sprint the 100 meters several times throughout an hour and determine her average heart rate from the various runs. Sprint the 100 meters several times throughout the month and determine her heart rate from the fastest run
Mathematics
1 answer:
OLga [1]3 years ago
3 0
Measure the resting heart rate and then after the 100 meters check it agian.
If this helps mark brainliest if not use your brain.
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Kathy's average score after 3 math quizzes was 83. Her score on the 4th quiz was 87. If all 4 of the quizzes are weighted equall
umka21 [38]

Answer:

84

Step-by-step explanation:

Pretend her first 3 quizzes were all 83 since that was the average. So the 4th was 87.

83+83+83+87 = 336

Divide by the total number of quizzes because they are equally weighted.

336/4 = 84

Her new average score is 84.

3 0
3 years ago
If 10000 is invested at an interest rate of 10 per year ,compound semiannually,find the value of the investment after the given
slega [8]

Answer:

Part a) \$17,958.56  

Part b) \$32,251.00  

Part c) \$57,918.16

Step-by-step explanation:

<u><em>The complete question is</em></u>

If $10,000 is invested at an interest rate of 10% per year, compounded semiannually, find the value of the investment after the given number of years. (Round your answers to the nearest cent.)

a)6 years

b)12 years

c)18 years

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

Part a) 6 years

we have  

t=6\ years\\ P=\$10,000\\ r=10\%=10/100=0.10\\n=2  

substitute in the formula above  

A=10,000(1+\frac{0.10}{2})^{2*6}  

A=10,000(1.05)^{12}  

A=\$17,958.56  

Part b) 12 years

we have  

t=12\ years\\ P=\$10,000\\ r=10\%=10/100=0.10\\n=2  

substitute in the formula above  

A=10,000(1+\frac{0.10}{2})^{2*12}  

A=10,000(1.05)^{24}  

A=\$32,251.00  

Part c) 18 years

we have  

t=18\ years\\ P=\$10,000\\ r=10\%=10/100=0.10\\n=2  

substitute in the formula above  

A=10,000(1+\frac{0.10}{2})^{2*18}  

A=10,000(1.05)^{36}  

A=\$57,918.16

7 0
4 years ago
Colleen compared the ratios 3:8 and 1/2.
Ulleksa [173]

To compare two fraction you need to rewrite the fractions so they have a common denominator.

1/2 should have been rewritten as 4/8

The answer is:

D. The fraction 1/2 should have been rewritten as 4/8.

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3 years ago
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What is the equation of the line shown in this graph?
Y_Kistochka [10]
The equation is y=-2x+4
8 0
3 years ago
What is 75/25 mortgage
miv72 [106K]

Answer:

No options.

Step-by-step explanation:

But, this would be a piggyback mortgage.

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