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zalisa [80]
3 years ago
5

How can you know if this equation is true?

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0
Notice how 1/2 and 3/8 are positive numbers. We add two positive numbers meaning that the result should be larger. However 2/5 = 0.4 is not larger than 1/2 = 0.5

So something went wrong with the adding. It turns out that the error is when the person added the numbers in the denominators (2 and 8 to get 10). This is not allowed. The denominators must be the same and stay the same in order for the fractions to be added.

For example: 1/7 + 2/7 = (1+2)/7 = 3/7
The 7s in the denominator do not change

Therefore the answer is choice B) Not true because 2/5 < 1/2
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Snowcat [4.5K]
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1.75b=.3
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I believe this is right. But not 100%
7 0
3 years ago
A car brought for 13000 deprecitates at 15 percent per year find value of car after 5 years
Nesterboy [21]

the value of the car will be 3250 after 5 years

Step-by-step explanation:

the value of the car = 13000

rate of interest = 15%

time = 5 years

in 5 years the car will depreciates  = 13000 X 15% X 5

=\frac{13000 X 15 X 5}{100}

= 9750

after 5 years the value of the car is = 13000 - 9750 = 3250

4 0
4 years ago
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puteri [66]

Answer:

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Step-by-step explanation:

i think

4 0
3 years ago
The waiting time to ride a roller coaster is 20 minutes one 150 people in line. How long is the waiting time when 1200 people ar
Serjik [45]
I’m not *completely* sure if this would be right, but it could possibly be:
160
how i got this:
20 = 150
/(divide) 150
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if you need me to explain anything in detail, please feel free to message! have a nice day:)<3
6 0
3 years ago
Why are there no properties of subtraction or division?
tia_tia [17]
There are no properties because you can do anything with subtraction and division
4 0
3 years ago
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