All categories

3 years ago

How do you do this problem?

Mathematics

1 answer:

ale4655 [162]3 years ago

5 0

Albert is walking twice ( 8/4) as fast as Kimbelry so Kimberley's speed is 1.5 yards per second.

So when Albert catches up he walks 6 + x yards while Kimberley has walked x yards.

x = 1.5t and 3t = 60 + x

3t = 60 + 1.5t

1.5t = 60

t = 60/1.5 = 40 seconds (answer)

So the time to walk 60 yards

You might be interested in

Angelina has a fish tank in the shape of a rectangular prism. The fish tank is 20 inches long, 7 inches wide, and 12 inches tall

igor_vitrenko [27]

Answer: 1680 inches cubed

Step-by-step explanation:

Volume = Length x Width x Height

V = 20 x 7 x 12

V = 140 x 12

V = 1680 inches cubed

8 0

3 years ago

An automobile tire has a diameter of about 1.7. What is the circumference

lilavasa [31]

Answer:

r = 0.85 ft
C = 5.3407075111026 ft
A = 2.2698006922186 ft²

Agenda:

r = radius
C = circumference
A = area
π = pi = 3.1415926535898
<span>√ = square root
</span>
Formula:
Circumference of a circle:

C = 2πr = πd

3 0

4 years ago

Need help asap!!! 48 points

Nady [450]

Answer:

b. i think

Step-by-step explanation:

7 0

3 years ago

11000 is compounded semiannually at a rate of 12% for 21 years. Find the total amount in the compound interest account

marishachu [46]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\dotfill &\$11000\\
r=rate\to 12\%\to \frac{12}{100}\dotfill &0.12\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semiannually, thus twice}
\end{array}\dotfill &2\\
t=years\dotfill &21
\end{cases}$

$\bf A=11000\left(1+\frac{0.12}{2}\right)^{2\cdot 21}\implies A=11000(1.06)^{42}\implies A\approx 127127.359416$

5 0

4 years ago

Find the prime factorization of the number 20. If the number is prime, state this

mihalych1998 [28]

Answer:

Some of the prime factors are 1,2,4,5,10,20,-1,-.2,-4,-5,-10,-20, and since 5 is prime you can just start with 5 and 4

Step-by-step explanation:

3 0

3 years ago