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3 years ago

14

Connie and two of her friends completed a 10-mile bike relay. each friend road an equal part of the race. what distance did each

friend ride?

2 answers:

IrinaVladis [17]3 years ago

8 0

Connie + 1 friend +2 friend = 10
3 people = 10 miles
3 people/3= 10 miles / 3
Each friend rode 3 1/3 miles

ella [17]3 years ago

5 0

Answer: 3 1/3

Step-by-step explanation:

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Please Help.....'<br><br>Divide. Write your answer to the simplest form.<br><br>5/6 divided by 7/10

belka [17]

Answer:

<u>5/6 ÷ 7/10 = 1 4/21</u>

Step-by-step explanation:

<u>How did we solve the problem above? When we divide two fractions, such as 5/6 ÷ 7/10, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.</u>

<u>We also simplify the answers to fraction problems whenever possible. hope this helps</u>

8 0

3 years ago

How do i do this? Its confusing

cestrela7 [59]

Answer:

$12,415.48

Step-by-step explanation:

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

where A is the final amount,

P is the initial amount,

r is the annual interest rate as a decimal,

n is the number of compoundings per year,

and t is the number of years.

A = 8000 (1 + 0.152/2)^(2×3)

A = 8000 (1.076)^6

A = 12415.48

5 0

3 years ago

A thermometer is taken from a room where the temperature is 24oc to the outdoors, where the temperature is −15oc. After one minu

kap26 [50]

Solution:

Use Newton's Law of Cooling.

T = T_s + (T_0 - T_s)*e^(-kt)

where

T = temperature at any instant

T_s = temperature of surroundings

T_0 = original temperature

t = elapsed time

k = constant

Now, we need to find this constant. We are given that after one hour, the temperature drops to 13° C in a 7°C Environment.

T = 14, T_0 = 24, T_s = -15, t = 1, k = ?

T = T_s + (T_0 - T_s)*e^(-kt)

==> 14 = -15 + (24 - 7)*e^(-k)

==> 14 = 7 + 17*e^(-k)

==> 7 = 17*e^(-k)

==> 7/13 = e^(-k)

==> -k = ln(7/17)

==> k = -ln(7/17) ≈ 0.774

Now,

Let's calculate temperatures!

T = ?, T_0 = 24, T_s = -15, k = 0.773, t = 3

T = T_s + (T_0 - T_s)*e^(-kt)

==> T = -15 + (24 –(-15))*e^[ -(0.774)(2) ]

==> T = -15 + 39*e^(-1.548)

==> T ≈ 15.72° C

This the required answer.

7 0

3 years ago

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone d

kompoz [17]

Answer:

The function f(x) is represented by:

$f(x)=1500(0.97)^x$

Hence, a=1500 and b=0.97

Step-by-step explanation:

The patient currently has a bone density of 1,500 kg/mg^3.

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually.

This means that the bone density that is remaining is:

100-3=97%

which is also represented as: 97%=97/100=0.97

Hence, the function f(x) that represents the bone density after x years is represented by:

$f(x)=a(0.97)^x$

where a is the initial bone density which is given to be: 1500 kg/mg^3.

Hence, the function is:

$f(x)=1500(0.97)^x$

6 0

3 years ago

Read 2 more answers

A taxi travels 25 km east of airport. Then it travels from that point to a point that is 40 km west of the airport. Finally the

Marizza181 [45]

The answer is: " 95 km " .
__________________________________________________
Explanation:
__________________________________________________

   ("airport")
•   {Step 1): " 25 km east " •<span>
</span>│===============================> <span>│

</span>• {Step 2): " 40 km west ["of that point"] " ; • │<==========================================│<span>

  </span>• {Step 3: [back to airport] = " (40 km − 25 km) " ;

  • ("airport").
│=======>│
<span> _________________________________________________

<u> Note</u>: To find "total distance traveled:

" 40 km +</span> (40 km) + (40 km <span>− 25 km) " ;

= </span>" 40 km + (40 km) + (15 km) " ;

= " 40 km + 40 km + (15 km) " ;

= 80 km + 15 km ;

= 95 km .
____________________________________________________
<span>
The answer is: " 95 km <span>" .
</span>____________________________________________________

</span>

4 0

3 years ago