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2 years ago

A teacher can grade 30 papers in 6 minutes and 100 papers in 20 minutes what is the rate of change

Mathematics

1 answer:

mr Goodwill [35]2 years ago

3 0

Answer:

Step-by-step explanation i subtracted but im not good at math so dont take my word for it

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Squirrels forget where they hide about half of their nuts

Anna35 [415]

Answer:

really?

Step-by-step explanation:

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2 years ago

To convert a capacity of 8.7 gallons to quarts, which ratio could you multiply by? remember that 1 gallon = 4 quarts.

Papessa [141]

Using the factor label method, you would set up your ratio like so: $8.7 gall * \frac{4 qts}{1 gall}$

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3 years ago

Aiko jump rope for an amazing 20 min she stopped at 8:05 when did she start

Scrat [10]

Aiko jump roped for 20 minutes before stopping at 8:05. Just count 20 minutes back in order to see when she started.

8:05 - 20 minutes = 7:45

6 0

2 years ago

Read 2 more answers

A credit card company charges 18.6% percent per year interest. Compute the effective annual rate if they compound, (a) annualy,

Darina [25.2K]

Answer:

a) Effective annual rate: 18.6%

b) Effective annual rate: 20.27%

c) Effective annual rate: 20.43%

d) Effective annual rate: 20.44%

Step-by-step explanation:

The effective annual interest rate, if it is not compounded continuously, is given by the formula

$I=C(1+\frac{r}{n})^{nt}-C$

where

C = Amount of the credit granted

r = nominal interest per year

n = compounding frequency

t = the length of time the interest is applied. In this case, 1 year.

In the special case the interest rate is compounded continuously, the interest is given by

$I=Ce^{rt}-C$

(a) Annually

$I=C(1+\frac{0.186}{1})-C=C(1.186)-C=C(1.186-1)=C(0.186)$

The effective annual rate is 18.6%

(b) Monthly

There are 12 months in a year

$I=C(1+\frac{0.186}{12})^{12}-C=C(1.2027)-C=C(0.2027)$

The effective annual rate is 20.27%

(c) Daily

There are 365 days in a year

$I=C(1+\frac{0.186}{365})^{365}-C=C(1.2043)-C=C(0.2043)$

The effective annual rate is 20.43%

(d) Continuously

$I=Ce^{0.186}-C=C(1.2044)-C=C(0.2044)$

The effective annual rate is 20.44%

3 0

2 years ago

Explain your answer !! Have a nice day Will give braisnlt

Stels [109]

The answer is B because in total you there are 15 bicycles and tricycles so b +t =15
Bicycles have 2 wheels and tricycles have 3 wheels so 2b + 3t = 45

6 0

2 years ago