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erik [133]
3 years ago
11

What’s the answer idk how to do this

Mathematics
2 answers:
olchik [2.2K]3 years ago
8 0

Multiple the fraction and the number

horrorfan [7]3 years ago
4 0
I believe that the answer is A (62)
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Needs to be in fraction form and simplified <br><br> 3 4/5 + 4 5/6 =? <br><br> 10 points
LenaWriter [7]

Answer:

259/30 or 8 19/30 depending on what format your teacher wants the answer

Step-by-step explanation:

First we can turn both mixed fractions into improper fractions and to do that we multiply the whole number by the denominator and that add that to the top number.  So for 3 4/5 we would multiply 3 and 5 and than add 4 getting us to 19/5 doing the same to 4 5/6 gets us to 29/6.  Now in order to add fractions we need to get a common denominator.  The least common multiple of 5 and 6 is 30 so we will multiply each fraction by whatever number will give us 30 in the denomiator.  for 19/5 that number is 6 so our new fraction is 114/30 and for 29/6 that number is 5 so our new number is 145/30.  Now we just add the numerators and simplify.  114/30+145/30=259/30

I hope this helps and please don't hesitate to ask if there is anything still unclear!

6 0
3 years ago
The concentration C (in mg/dl), of a certain antibiotic in a patient's bloodstream is given by C(t)=50 t /(t^2 + 25) where t is
marishachu [46]
Given that the concentration has been modeled by the formula:
C(t)=50t/(t^2+25)
where:
t is time in hours.
The concentration after 5 hours will be given by:
t= 5 hours 
plugging the value in the equation we get:
C(5)=(50(5))/(5^2+25)
simplifying the above we get:
C(5)=250/(50)=5 mg/dl

Answer: 5 mg/dl
8 0
3 years ago
Solve the equation 0.1x+7=2​
yawa3891 [41]

Answer:

0.1x = 2-7

0.1x = -5

x = -50

5 0
3 years ago
Read 2 more answers
It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.
bixtya [17]

Answer:

1 album

Step-by-step explanation:

it would take along time to explain but i did the work i promise

7 0
2 years ago
The curve y= (1-x)/(x-3) is concave up when:
Diano4ka-milaya [45]
Use quotient rule to find y"
y" = [-(x-3)-(1-x)]/(x-3)^2 = 2/(x-3)^2
y" = -4/(x-3)^3
 -4/(x-3)^3 > 0
 (x-3)^3 < 0
 x-3 < 0
 x< 3

hope this help
7 0
3 years ago
Read 2 more answers
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