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patriot [66]
3 years ago
14

7 1/5 - (-4/5) this is adding and subtracting rationals​

Mathematics
1 answer:
tia_tia [17]3 years ago
7 0
8, because the two minuses add up and turn into positive and 1/5 adds to 4/5 and turns into a whole 1 and adds 7 equal 8
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MEDAAAL :D
Sonja [21]
<span>The answer is 2431.01. At the end of the first year, 5 percent of 2000 is taken and added on to the 2000 you started with. At the end of the second, another 5 percent of that higher number is taken and added on, and so on and so forth until you end up receiving 2431.01 in total after 4 years.</span>
8 0
3 years ago
Thirteen equal minus two (y minus four ) plus three y
Sav [38]

Answer:

5

Step-by-step explanation:

13 = -2(y - 4) + 3y

13 = -2y + 8 + 3y

13 = y + 8

5 = y

y = 5

6 0
3 years ago
Read 2 more answers
SOME ONE PLEASE HELP!! step by step explanation
leva [86]

2.) 4y = 2y - 10 - 2

--> 4y = 2y - 8 --> 4y - 2y = -8 --> 2y = -8

So y = -4.

3.) 6x - 9x - 4 = -2x - 2

Combine like terms:

--> -3x - 4 = -2x - 2

Isolate x ---> -3x - (-2x) = -2 - (-4)

----> -x = 2

So x = -2

4.) -2(2x + 3) = -4(x + 1) - 2

--> -4x - 6 = -4x - 4 - 2

Combine like terms ---> -4x - 6 = -4x - 6

This equation has many possible solutions.

5.) 3(x + 2) = -5 - 2(x - 3)

--> 3x + 6 = -5 - 2x + 6

Combine like terms ---> 3x + 6 = -2x + 1

----> 3x + 2x = 1 - 6

-----> 5x = -5

So x = -1.

6.) 2(x - 3) = \frac{1}{2}(4x - 12)

Distribute ---> 2x - 6 = 2x - 6

This equation has many possible solutions.

4 0
3 years ago
Simplify each expression.<br>15. 8x + 17y + 9x​
kicyunya [14]

Answer:

17x + 17y

Step-by-step explanation:

8 0
4 years ago
A stack of boards is 24 inches high. each board is 3/4 of and inch thick. How many boards are in the stack?
uranmaximum [27]

Answer:

it would be 18

Step-by-step explanation:

1/4 is 6

2/4 is 12

3/4 is 18

4/4 is 24

You add 6 each time for this one.

7 0
3 years ago
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