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PSYCHO15rus [73]
3 years ago
6

How do you solve 3 1/2- 2 2/5

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
5 0
You would first have to find common denominators for the fractions. In this case it would be 10. So your new equation would be 3 5/10 - 2 4/10. Once you do this you can then subtract and solve getting the answer of 1 1/10
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A square with a side length of x+6 has the same perimeter as an equilateral triangle with a side length of 4 x what is the area
prohojiy [21]
The perimeter of the equilateral triangle is 3s and s=4x so the perimeter is:

12x

And we are told that the perimeter of the square is the same.  And that perimeter is 4s where s=(x+6) so that perimeter is equal to

4x+24, and again, we are told that these two values are equal so we can solve for x...

12x=4x+24

8x=24

x=3 and if x=3 then the side length is (x+6)=9

So the area of the square is always A=s^2 and s=9 thus:

A=9^2

A=81 u^2
7 0
3 years ago
Solve the system by substitution.<br> -2y - 10 = x<br> - 10x - y = -14
masya89 [10]

Answer:

x=2 and y=−6

sorry this is pretty long, I did not know if you needed the steps or not

Step-by-step explanation:

−2y−10=x;−10x−y=−14

Solve−2y−10=x for x

−2y−10=x

−2y−10+−x=x+−x

−x−2y−10=0

−x−2y−10+2y=0+2y

−x−10=2y

−x−10+10=2y+10

−x=2y+10

-x/-1=2y+10/-1

x=−2y−10

Substitute−2y−10 for x in−10x−y=−14

−10x−y=−14

−10(−2y−10)−y=−14

19y+100=−14

19y+100+−100=−14+−100

19y=−114

19y/19=-114/19

y=-6

Substitute−6 for y in x=−2y−10

x=−2y−10

x=(−2)(−6)−10

x= 2

x=2 and y=−6

6 0
3 years ago
Is this a proportional or nonproportional linear relationship?
BlackZzzverrR [31]

Answer:

Linear

Step-by-step explanation:

The numbers add by 4 it’s not scrambled

3 0
3 years ago
Read 2 more answers
The freezer at The Beech Café must be kept below -19 °C. It is currently at -17.5 °C. Is it cold enough?
Fofino [41]
It is not cold enough

3 0
3 years ago
Read 2 more answers
(-9)4 what is (-9) to the power of for is
Luba_88 [7]

Answer:

6,561

Step-by-step explanation:

(-9)^4 = -9*-9*-9*-9= 6,561

8 0
4 years ago
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