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oee [108]
3 years ago
14

lena finished her assignment in 1/2 hours. then she completed her other assignment in 1/5 hours. what was the total time lena sp

ent doing these assignments.
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

7/10 hours

Step-by-step explanation:

her first assignment took 1/2 hour

her second assignment took 1/5 hour

so in total she took 1/2 + 1/5

we need to find a common denominator

the lcm(2,5)=10

so multiply 1/2 by 5/5 to obtain 5/10

multiply 1/5 by 2/2 to obtain 2/10

5/10 + 2/10 = 7/10

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malfutka [58]
Answer is the second f
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3 years ago
In a bag there are 3 red marbles, 2 yellow marbles, and 1 blue marble. what is the probability in simplest form of a yellow marb
dangina [55]

Answer:

The probability is 1/3, or in percent form, 33.3%.

Step-by-step explanation:

First, add up all the marbles. 3 plus 2 plus 1 equals 6 total marbles.

There are 2 yellow marbles out of 6 total marbles. Make it a fraction: 2/6.

Simplify the fraction by dividing by 2, to get 1/3, which is 33.3%.

Hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, and good luck on your assignment. :)

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For the function f(x) = 2x +3, evaluate f(3).
AveGali [126]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
Two ratios that are equivalent to 5/7
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You could pick just about anything 3/8 is not the same thing as 5/7 and neither is 3/4

Something that is equivalent would be something like 10/14 or 20/28

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3 years ago
WHICH OF THE FOLLOWING COMPARISONS IS FALSE A. 4 LITERS < 1 GALLON B. 1 FOOT < 1 METER C. 25 GRAMS < 1 OUNCE D. 10 KILO
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Ummm search it up on google it should be on there
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