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1 year ago

Look at Andrea’s running journal.

2 answers:

german1 year ago

7 0

First align the decimal points and the numbers, then add the extra 0's if needed. Lastly, add and the total answer is 14.225.

Makovka662 [10]1 year ago

4 0

Answer:

example answer:

To add the three distances first align the decimal points, adding in place holder zeros if necessary. Then add each place value and rename when necessary.

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Devon exercised the same amount of time each day for 5 days last week. e His exercise included walking and swimming. e Each day

prohojiy [21]

I think that Devon swam at least 35 minutes each day for 5 days because if he exercised 225 minutes and each day he walked for 10 minutes then if you divide 225 by 5 you get 45 so every day he exercised 45 minutes and since he walked for 10 minutes you subtract 10 from 45 which gives you 35 so he swam for 35 minutes.

8 0

2 years ago

It takes Daphne 25 minutes to assemble a model plane. During her work day Daphne takes 30 minutes for lunch and one 15 minute br

natka813 [3]

Answer:

Step-by-step explanation:

We first of all start by cumulating all the time she spent for break

lunch= 30min

break= 15min

total break= 45min

also the time taken to assemble one model plane 25min

let the number of hours be p

and the total number of model plane be y

The model is

y=25p-45

7 0

1 year ago

Sue played four games of golf for these games her modal score was 98 and her mean score was 100 her range of score was 10 what w

earnstyle [38]

Answer : Remaining two observation becomes 97 and 107.

Explanation :

Since we have given that

Mean = 100

Modal value = 98

Range = 10

As we know that ,

Range = Highest-Lowest

Let highest observation be x

Let lowest observation be y

So equation becomes x-y=10 ----equation 1

So, observation becomes

x,98,98,y

Now, we use the formula of mean i.e.

Mean = $\frac{\text{Sum of observation}}{\text{N.of observaton}}$

So, mean = $\frac{x=98=98+y}{4}=400\\\frac{196+x+y}{4}=100\\x+y=400-196\\x-y=204$

So our 2nd equation becomes

x+y=204

On using elimination method of system of linear equation on these two equation we get,

x=97

and

$x+y=204\\y=204-x\\y=204-97\\y=107$

Hence , remaining two observation becomes 97 and 107.

8 0

1 year ago

Isabella paid one of her bill late and owed a 4% late fee was 780. How much was Isabella's original bill in dollar

Rainbow [258]

You multipy 0.04 x 780

5 0

1 year ago

How many distinct permutations can be made from the letters of the word columns? how many of these permutations begin with the l

luda_lava [24]

7*6*5*4*3*2*1 = 7! = 5040

1*6*5*4*3*2*1 = 6! = 720

6 0

2 years ago