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Oxana [17]
3 years ago
14

What's the sum of 2⁄5 and 2⁄4?

Mathematics
2 answers:
Kruka [31]3 years ago
7 0

We need them to have the same denominator so let's change it to 20.

8/20+10/20=18/20=9/10

PSYCHO15rus [73]3 years ago
6 0
2/5 + 2/4

8/20 = 10/20

8/20 + 10/20 = 18/20

18/20 = 9/10

9/10 = 0.9

Your answer is 9/10 or 0.9


Hope I helped! 

Let me know if you need anything else

~ Zoe
You might be interested in
In a group of 42 students, 9 study both Art and Biology.
LUCKY_DIMON [66]
Answer:
The probability the student studies Art and
Biology is 0.2143.
Step-by-step explanation:
Denote the events as follows:
A = a students studies Art
B= a students studies Biology
The information provided is:
N = 42
n (An B) = 9
n (A' n B) = 10
n (A' n B') =7
Then the number of students who study Art
but not Biology is:
n(An B') = N -n (An B) -n (A' nB) - n (A'n B')
= 42 - 10 - 7 - 9
= 16
The number of students who study Art but
not Biology is 16.
Compute the probability the student studies
Art and Biology as follows:
P(ANB)
n(ANB)
= 0.2143
Thus, the probability the student studies Art
and Biology is 0.2143.
3 0
2 years ago
A home builder wants 5 acres of land split into 13 equal sections. Three of these expressions give the number of acres of land e
galina1969 [7]

Answer:

b 5/13

Step-by-step explanation:

6 0
3 years ago
PRECAL PLEASE HELP!!!!
vivado [14]

Answer:

am going with A. because it's not D or C

Step-by-step explanation:

4 0
3 years ago
Please help I don’t understand how to do these
steposvetlana [31]

Answer:

I think there would be 86 blue marbles

x=4(106 - x ) + 6

x= 424 - 4x + 6

5x= 430

x= 86 blue marbles

Tell me if I'm wrong, hope this helps.

3 0
3 years ago
If f(x) = x2 - 1 and g(x) = 2x - 3, what is the domain of (fog)(x)?
ladessa [460]

Answer:

domain will be ( -∞, ∞)

Step-by-step explanation:

The given functions are f(x) = x² - 1 and g(x) = 2x - 3

We have to find domain of (fog)(x)

We will find the function (fg)(x) first.

(fog)(x) = f[g(x)]

         = (2x - 3)²

         = 4x² + 9 - 12x - 1

        = 4x² - 12x + 8

       = 4 (x² - 3x + 2)

The given function is defined for all values of x.

Therefore, domain will be ( -∞, ∞)

<u>brainly.com/question/2458431</u>

4 0
2 years ago
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