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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
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PLEASEEEEEEEEEEEEEEEEEE URGENT
jeyben [28]

Option C:

f(x) = 5x + 7 is the function of the input-output table.

Solution:

Option A: f(x) = 6x + 9

Input x = 1 in the above equation.

f(1) = 6(1) + 9

    = 6 + 9

f(1) = 15

But the output is 12 in the table.

So, it is not the function of the table.

Option B: f(x) = 7x + 5

Input x = 1 in the above equation.

f(1) = 7(1) + 5

f(1) = 12

Input x = 5 in the above equation.

f(5) = 7(5) + 5

f(5) = 40

But the output is 32 in the table.

So, it is not the function of the table.

Option C: f(x) = 5x + 7

Input x = 1 in the above equation.

f(1) = 5(1) + 7

f(1) = 12

Input x = 5 in the above equation.

f(5) = 5(5) + 7

f(5) = 32

Input x = 10 in the above equation.

f(10) = 5(10) + 7

f(10) = 57

Input x = 5 in the above equation.

f(15) = 5(15) + 7

f(15) = 82

All outputs are correct for the given input.

Hence it is the function of the table.

Option D: f(x) = 12x + 1

Input x = 1 in the above equation.

f(1) = 12(1) + 1

f(1) = 12

Input x = 5 in the above equation.

f(5) = 12(5) + 1

f(5) = 61

But the output is 32 in the table.

So, it is not the function of the table.

Hence Option C is the correct answer.

f(x) = 5x + 7 is the function of the input-output table.

4 0
3 years ago
Add and simplify 9/16 + 1/2 equals
Tomtit [17]
For this question you can say: 
1/2 = 8/16
so now you can add easily:
9/16 + 8/16 = 17/16 and that's the simplest fraction but you can also say:
17/16 = 1.0625 :)))
i hope this is helpful 
have a nice day 
3 0
3 years ago
Read 2 more answers
Someone help me on question 10 please!
Crazy boy [7]

Answer:

Step-by-step explanation:

500÷9=55.56miles/h (correct to 3 decimal places)

7 0
2 years ago
If the length of an object decreases while its width and height remain unchanged,will its volume increased or decreased?
Rom4ik [11]
The volume will decrease.

If everything else remains the same then it will decrease. If other sides were increased proportionally then it would stay the same. It would increase if other sides were enlarged more than the length was shortened.
7 0
3 years ago
Gabrielle's age is three times Mikhail's age. The sum of their ages is 84. What is Mikhail's age?
Whitepunk [10]

Answer: 21

Step-by-step explanation:

84 divided by 4 = 21 since grabielle is 21, and then mikhail is gonna be 3 times more so it’s gonna be 63

7 0
3 years ago
Read 2 more answers
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