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Dmitry [639]
2 years ago
9

5th grade math. correct answer will be marked brainliest.

Mathematics
2 answers:
arsen [322]2 years ago
8 0

Answer:

Take lcm of 3 and 12, i.e., 12

Step-by-step explanation:

1/3+5/12= [(12/3)×1+(12/12)×5]/12

= 9/12

= 3/4

Alex17521 [72]2 years ago
5 0

Answer:

I think it's like the top answer is 6 the bottom 36.

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a country's population in 1990 was 134 million. in 2000 it was a 139 million. estimate the population in 2014 using the exponent
yuradex [85]
F=ir^t

139=134r^10

139/134=r^10

r=(139/134)^(1/10) then:

f=134(139/134)^(t/10)  so in 2014, t=24 so

f=134(139/134)^(2.4)

f≈146 million  (to nearest million)

Some will say that you have to use the exponential function, but it really gives you the same answer...even for continuous compounding :)...

A=Pe^(kt)

139=134e^(10k)

139/134=e^(10k)

ln(139/134)=10k

k=ln(139/134)/10 so

A=134e^(t*ln(139/134)/10)  when t=24

A=134e^(2.4*ln(139/134))

A≈146 million (to nearest million)

The only real reason or advantage to using A=Pe^(kt) is when you start getting into differential equations...
6 0
3 years ago
Norman bought 5/6 pounds of cookies. He ate 3/5 cookies. What was the weight of the cookies he ate
schepotkina [342]

Answer:

Half a pound.

Step-by-step explanation:

To find the number of pounds he ate, multiply the fractions.

\frac{5}{6}*\frac{3}{5} = \frac{15}{30}=\frac{1}{2}

He ate 1/2 a pound.

8 0
3 years ago
72 is 25% of students that have a cat, how many total students are there?
Lemur [1.5K]

Answer:

the answer is 288 because 72 would be one fourth or 25% of 288. 72 plus 72 plus 72 plus 72 equals 288 equals 100%

7 0
3 years ago
Find the value of x and y​
Marianna [84]

Answer:

What is the equation?

Step-by-step explanation:

6 0
3 years ago
Which term best describes lines that meet at right angles ?
Sholpan [36]

Answer:

Perpendicular

Step-by-step explanation:

Perpendicular lines meet at a 90 degree angle.

5 0
3 years ago
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