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DerKrebs [107]
3 years ago
15

What is 2/5 + 1/2 so what is the answer

Mathematics
2 answers:
WITCHER [35]3 years ago
7 0

Answer:

The answer is 0.9 or 9/10

Step-by-step explanation:

If you convert these to decimals, you have 0.4 + 0.5. This is equal to 0.9. Hope this Helps!

attashe74 [19]3 years ago
6 0

Answer: 9/10

Step-by-step explanation:

convert both to tenths

You might be interested in
He height of a triangle is 9 m less than is base the area is 56 m^2 what is the length of the base?
zloy xaker [14]
Formula for area of triangle:
A= 1/2 bh
Where b is the base and h is the height of the triangle.
Here, h= b-9
A=56 m^2
Put values in formula.
56= 1/2 (b) (b-9)
56=b(b-9)/2
Multiply both sides by 2.
112=b^2-9b
or
b^2-9b-112=0
Factorise the equation.
b^2-16b+7b-112=0
b(b-16)+7(b-16)=0
(b+7)(b-16)=0
Using zero factor theorem.
b+7=0 or b=-7
and
b-16=0 or b=16
Ignore the value b=-7, because length cannot be negative.
So length of base=16 m

Answer: Base=16m


4 0
3 years ago
Simplify by combining like terms:​
Romashka [77]

9514 1404 393

Answer:

  -77k²m³

Step-by-step explanation:

The variable arrangement is the same for each term, so we simply combine their coefficients:

  k²m³ +22k²m³ -100k²m³ = (1 +22 -100)k²m³ = -77k²m³

5 0
3 years ago
Solve for x<br> -1/5(×-4)=-2<br><br> Enter your answer in the box.<br> ×=
Arisa [49]

Answer:

x = 14

Step-by-step explanation:

-1/5(x - 4) = -2

-1/5x + 4/5 = -2

-1/5x = -2 - 4/5

-1/5x = -10/5 - 4/5

-1/5x = - 14/5

x = -14/5 * - 5

x = 70/5

x = 14 <====

3 0
3 years ago
Which expression has a value of 7/12
Alenkinab [10]

Answer:

there isn't any choices but 6/12+1/12=7/12

or 4/12+3/12=7/12

hope this helps

have a good day :)

Step-by-step explanation:

5 0
2 years ago
Could you help me plz
Nadya [2.5K]

Answer:

Step-by-step explanation:

(For a circle)

Circumference formula: π*2r

Area formula: π*r^2

1:

A)

π*2(3) =>6π=>18.84 m

B)

π*(3)^2=>9π=>28.27 m^2

2.

A)

π*2(3.1)=>6.2π=>19.47 m

B)

π*(3.1)^2=>9.61π=>30.19 m^2

6 0
3 years ago
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