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Dafna11 [192]
4 years ago
13

I don’t know the answer to that one can you help me please

Mathematics
1 answer:
dybincka [34]4 years ago
4 0

Answer:

16/45

Step-by-step explanation:

Step 1:  When dividing fractions, use “KFC”.  It means Keep the first fraction, Flip the second one, and  

              Change it to multiplication

-4/20 ÷ -9/16    →    -4/20 ∙ 16/-9

Step 2:  Reduce any fractions if necessary, it makes multiplying them easier and you will have to reduce anyway at the end.  It’s easier arithmetic to reduce at this step.  The first fraction reduces because both the numerator and denominator are divisible by 4.  

-1/5  ∙   16/-9    

Step 3:  Multiply numerators and denominators together to get one fraction

(-16)/(-45)  

Step 4:  Cancel out the negatives, a negative divided by a negative is a positive.  Our final answer is

 

16/45  


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Cheryl is planning to go to a four-year college in two years. She develops a monthly savings plan using the estimates shown. Wha
Alik [6]

Answer:

$541.67 per month

Step-by-step explanation:

Tuition and other expenses = $8,250 per semester.

There are two semesters in a year

She has 4 years to spend

Total semester=4years*2semesters

=8 semesters

4 years in college which is a total of 8 semesters.

Total Tuition and other expenses = $8,250 * 8

= $66,000

She needs a total of $66,00 to complete her college

Assistance from parents=$15,000

Financial aid(per semester)=$4750

Total financial aid=$38,000

Total assistance=

Assistance from parents+ financial aid

=$15000+$38,000

=$53,000

Total savings=Total amount needed - Total assistance

=$66,000 - $53,000

=$13,000

She needs to save $13,000 in two years

There are 12 months in one year

2 years=2*12=24 months

Monthly savings=Total savings/24 months

=$13,000/24

=$541.666666

To the nearest cent

=$541.67

3 0
4 years ago
A boat moves at a rate of 11 mph in Stillwater if the rivers current flow at a rate of 2 mph how long does it take the boat to t
tia_tia [17]

Answer:

2 hours 52 minutes

Step-by-step explanation:

11-2=9

26/9=2.87

8 0
3 years ago
A stone is dropped into some water and a circle of radius r is formed and slowly expands. The perimeter of the circle is increas
Mazyrski [523]
I believe it would be 6 due to the radius being a half of the actual circumfrence
3 0
3 years ago
Read 2 more answers
Interpret this probability. Select the correct choice below and fill in the answer box within your choice. ​(Round to the neares
tia_tia [17]

Answer:

A. If 100 pregnant individuals were selected independently from this​ population, we would expect nothing pregnancies to last less than 184184 days.

Step-by-step explanation:

The mean, standard deviation, and population size can be used for the analysis. In the problem above, the population size is 100 and the estimated number of days for no pregnancy to occur is less than approximately 184 days. This shows that there will not be any pregnancy for any given day that is below the 184th day.

6 0
4 years ago
A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8).
Mariulka [41]
In the third step, y-(-8) is the same as y+8. Therefore, it is not correct to add 8 on to both sides. Instead, the student should have subtracted it from both sides.

y-(-8)=-6x+12
y+8=-6x+12
y=-6x+4
7 0
4 years ago
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