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klio [65]
2 years ago
11

Look at the image below

Mathematics
1 answer:
Blizzard [7]2 years ago
5 0

Answer:

(A) 33.9 (B) 22.6

Step-by-step explanation:

We first need to round to the nearest dollar for both prices. Lets examine both numbers.

$30.<u>1</u>2       $19.<u>9</u>3

We can round $30.12 to $30 since the number in the tenths place is 1 and we can round $19.93 to $20 since there is a nine in the tenths place.

Now we must find the tax for each number. We can do that by multiplying each number by 0.13 since that is 13% in decimal form. Lets do that now

30*0.13=3.9           20*0.13=2.6

Now we can find the final price for each number by adding the tax to the rounded price.

30+3.9=33.9          20+2.6=22.6

Hence, (A) 33.9, (B) 22.6

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two men working together can complete a job in 1 hour 20 minutes. the first man working alone can complete the task in two hours
lana [24]

Answer:

Second Man = (2 Hours * 1.3333 Hours) / (2 Hours - 1.3333 Hours)

Second Man = (2.6666666667 ) / (.666666667)

Second Man (when working alone) =  4 Hours


Step-by-step explanation:


6 0
4 years ago
Which of the following is true regarding ANOVA?
Nikitich [7]

Answer:

Option d) Both (a) and (c)        

Step-by-step explanation:

ANOVA

  • It stands for analysis of variance
  • It is used to check difference in mean of three or more groups.
  • It can also be used to check the difference between mean of groups.
  • It can also be used to check the difference between medians of groups.
  • There are many types of ANOVA test: one way, two way, etc

Thus, the correct answer is

Option d) Both (a) and (c)

6 0
3 years ago
How do I do rate of change???
Bad White [126]

Answer:

12

Step-by-step explanation:

For our problem since we only in 10 am:

I'm going to let x=4 represent the time 10:04 am

which means I'm going to let x=17 represent 10:17am.

So when x=4, y=23 miles and when x=17,y=179 miles.

You have two points.

You can use the formula m=\frac{y_2-y_1}{x_2-x_1}.

Or just line the points up vertically and subtract them vertically, then put 2nd difference over first difference. Like this:

(    17  ,   179)

-(     4 ,      23)

-----------------------

   13          156

So the slope is 156/13=12 miles/hour.

7 0
3 years ago
What is -9 as a rational number
ivolga24 [154]

Answer:

rational

Step-by-step explanation:

8 0
4 years ago
Tod does not have any cookies. David gives Jeff 8 cookies. Then he splits half of the cookies he has left with Tod. David let’s
k0ka [10]

Let the number of cookies David has = c

Number of cookies given to Jeff = 8

So cookies left with David = c-8

David splits the cookies in half with Tod. So cookies left with David are =

\frac{c-8}{2}

Same number of cookies are with Tod = \frac{c-8}{2}

He finds the number of cookies that Tod has is 1/2 the difference of C and 8. Write an expression to represent the number of cookies that Tod has.

Hence, number of cookies with Tod are= \frac{c-8}{2}

4 0
3 years ago
Read 2 more answers
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