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Leviafan [203]
3 years ago
11

Please help me with this, thanks

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
5 0
The answer is 0.40 or 0.4
DedPeter [7]3 years ago
4 0
The answer is 0.4 hope this helps
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Please help mathhh assignment iready #6th grade
erastova [34]
The number is the second one
5 0
3 years ago
Rebecca and dan are biking in a national park for three days they rode 5 3/4 hours the first day and 6 4/5 hours the second day
likoan [24]

Answer:

Rebecca and Dan need to ride 7\frac{9}{20}\ hrs. on the third day in order to achieve goal of biking.

Step-by-step explanation:

Given:

Goal of Total number of hours of biking in park =20 hours.

Number of hours rode on first day = 5\frac34 \ hrs.

So we will convert mixed fraction into Improper fraction.

Now we can say that;

To Convert mixed fraction into Improper fraction multiply the whole number part by the fraction's denominator and then add that to the numerator,then write the result on top of the denominator.

5\frac34 \ hrs. can be Rewritten as \frac{23}{4}\ hrs

Number of hours rode on first day = \frac{23}{4}\ hrs

Also Given:

Number of hours rode on second day = 6\frac45 \ hrs

6\frac45 \ hrs can be Rewritten as \frac{34}{5}\ hrs.

Number of hours rode on second day = \frac{34}{5}\ hrs.

We need to find Number of hours she need to ride on third day in order to achieve the goal.

Solution:

Now we can say that;

Number of hours she need to ride on third day can be calculated by subtracting Number of hours rode on first day and Number of hours rode on second day from the Goal of Total number of hours of biking in park.

framing in equation form we get;

Number of hours she need to ride on third day = 20-\frac{23}{4}-\frac{34}{5}

Now we will use LCM to make the denominators common we get;

Number of hours she need to ride on third day = \frac{20\times20}{20}-\frac{23\times5}{4\times5}-\frac{34\times4}{5\times4}= \frac{400}{20}-\frac{115}{20}-\frac{136}{20}

Now denominators are common so we will solve the numerator we get;

Number of hours she need to ride on third day =\frac{400-115-136}{20}=\frac{149}{20}\ hrs \ \ Or \ \ 7\frac{9}{20}\ hrs.

Hence Rebecca and Dan need to ride 7\frac{9}{20}\ hrs. on the third day in order to achieve goal of biking.

8 0
3 years ago
A reflecting telescope contains a mirror shaped like a parabola of revolution. If the mirror is 16 inches across at its opening
choli [55]

Answer:

18

Step-by-step explanation:

5 0
3 years ago
What is 5 3/5% of 750?<br><br> Thanks in advance.
GREYUIT [131]
<h3>given:</h3>

5 \frac{3}{5} \% \: of \: 750

<h3>solution:</h3>

5 \frac{3}{5}  = 5.6

\frac{5.6\%}{100}  \times  \frac{x}{750}

= 42%

6 0
2 years ago
What is 7 over 20 as a percentage
expeople1 [14]
7/20) * 100%
= 35%
= 0.3
4 0
3 years ago
Read 2 more answers
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