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3 years ago

Jan walked 3 ½ miles in ¾ hours. what is the unit rate?

Mathematics

2 answers:

dusya [7]3 years ago

8 0

Answer:

33/4 = 8-1/4 miles/ hour.

Step-by-step explanation:

jek_recluse [69]3 years ago

8 0

Answer: 4 2/3

Step-by-step explanation:

3 ½ divide by ¾ hours.

7/2 x 4/3

14/3 = 4 2/3

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The amount of a radioactive isotope decays in half every year the amount of the isotope can be modeled by f(x)=3461/2x and f(1)=

pychu [463]

Answer:

1 represents the number of years passed.

step -by-step explanation:

The amount of a radioactive isotope decays in half every year. The amount of the isotope can be modeled by f(x) = 346 (1/2)x and f(1) = 173

Here 1 represents the number of years that passed.

So 1 represents the number of years.

Hope this will helpful.

Thank you.

4 0

3 years ago

Catherine invested a principal of $1,650 in her bank account with interest rate 3.1 % How much interest did she earn in 14 years

never [62]

Answer:

$693

Step-by-step explanation:

Catherine invested a principal of $1,650 in her bank account with;

interest rate of 3.1%

How much interest did she earn in 14 years?

To find the amount accumulated in the 14 years, we use the formula:

A = P(1 + rt)

Where A is the amount accumulated, P is the principal, r is the interest rate and t is the time.

A = $1650(1 + $\frac{3}{100}$ (14))

A = $1650 + $693 = $2343

Interest = Amount (A) - Principal (P) = $2343 - $1650 = $693

7 0

3 years ago

Read 2 more answers

Evaluate 27x1/3^3<br> I need it in simple form

ruslelena [56]

Step-by-step explanation:

$27 \times \frac{1}{ {3}^{3} }$

$= 27 \times \frac{1}{27}$

$= 1$

7 0

3 years ago

Read 2 more answers

Raj recorded the scores of six of his classmates in the table.

WINSTONCH [101]

98-70 is 28 meaning that the range is 28

4 0

3 years ago

Determine intervals y= -x^3 + 3x^2 -2

motikmotik

Answer:

(2,2) and (0,-2)

Step-by-step explanation:

Use the website desmos for questions like graphing

3 0

3 years ago