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satela [25.4K]
3 years ago
9

In the morning, Alan drove 100 miles at the rate of 60 miles per hour; in the afternoon, he drove another 100 miles at the rate

of 40 miles per hour. What was his average rate of speed, in miles per hour, for the day?
Mathematics
1 answer:
klio [65]3 years ago
5 0
300 Is the correct answer
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If the sales tax is 7% on all purchases, how much should you set aside for $300. Show your work.
trasher [3.6K]

Answer:

$21

Step-by-step explanation:

7% = .07

$300 multiplied by .07 = $21

3 0
3 years ago
Help please.<br><br> r/5 - 6 = -1<br> A) r = 1 <br> B) r = 5 <br> C) r = 10 <br> D) r = 25
statuscvo [17]
Hello :),

\frac{r}{5}-6=-1 \\    \\ \frac{r}{5} =-1+6=5 \\  \\  r=5*5=25.
5 0
3 years ago
PLS HELP!! AND HURRY!! Find an expression for the nth term ( tn ) in each of the following sequences:
fiasKO [112]

If the pattern continues, so that each term is separated by a distance of 3, then the sequence is given by the recursive rule

\begin{cases}a_1=1\\a_n=a_{n-1}+3&\text{for }n>1\end{cases}

From this definition, we can write a_n in terms of a_1:

a_2=a_1+3

a_3=a_2+3=(a_1+3)+3=a_1+2\cdot3

a_4=a_3+3=(a_1+2\cdot3)+3=a_1+3\cdot3

a_5=a_4+3=(a_1+3\cdot3)+3=a_1+4\cdot3

and so on, up to

a_n=a_1+(n-1)\cdot3

(notice how the subscript on <em>a</em> and coefficient on 3 add up to <em>n</em>)

or

a_n=1+3(n-1)=3n-2

6 0
3 years ago
PLEASE HELP!! what is the surface area of a cylinder with a radius of 7 and a height of 32? Note: Answer must not be fraction or
Anton [14]

Area = 2pi*r*h + 2pi*r^2
Area = 2pi*r(h + r)
 
radius of 7 in and a height of 32 in


 Area = 14pi*39 = 546pi in^2

8 0
3 years ago
Find the product using the distributive property 2oo × 42.3
Greeley [361]

Answer:

Step-by-step explanation:

200 * 42.3 = 200 * (40 + 2.3)

                   = 200*40  + 200*2.3

                   = 8000 + 460.0

                   =8460

4 0
3 years ago
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