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Softa [21]
3 years ago
9

ASAP!!! if my grade is a 91% and i get a 74% what will my grade be

Mathematics
2 answers:
Andrews [41]3 years ago
6 0

Answer:

70

Step-by-step explanation:

nignag [31]3 years ago
3 0
You will have an 82.5
:)
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Trava [24]

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Step-by-step explanation:

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3 years ago
The sum of two positive integers, x and y, is not more than 40. The difference of the two integers is at least 20. Chancee choos
kvasek [131]

Answer:

No, Chancee mixed up the variables, the correct solution is that x must be between 20 and 40 and y must be between 0 and 10.

Step-by-step explanation:

Here, x and y are positive integers,

Such that, their sum is not more than 40,  

i.e. x + y ≤ 40 where x, y ≥ 0,

⇒ y ≤ 40 - x                 ...............(1),

Their difference is at least 20,

i.e. x - y ≥ 20

-y ≥ 20 - x

⇒ y ≤ x - 20   ............(2),

Graphing y ≤ 40 - x :

Related equation of inequality (1),

y = 40 - x

if x = 0, y = 40,

if y = 0, 0 = 40 - x ⇒ x = 40,

'≤' represents a solid line,

Join the points (0, 40) and (40, 0) by solid line.

Graphing y ≤ x - 20:

Related equation of inequality (1),

y = x - 20,

if x = 0, y = -20,

if y = 0, 0 = x - 20 ⇒ x = 20,

'≤' represents a solid line,

Join the points (0, -20) and (20, 0) by solid line.

By graphing we obtained a feasible region that is the solution of the system of inequalities (1) and (2) ( shown below ),

In which,

20 ≤ x ≤ 40 and 0 ≤ y ≤ 30

Hence, Chancee did not find the correct solution.

5 0
3 years ago
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7 0
3 years ago
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Solution is (2, -1)

Step-by-step explanation:

The lines cross  at the point where x = 2 and y = -1.

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3 years ago
.Write in standard form. 4h - 6(5+7h)
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Answer:

-38h-30

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=(4h+−42h)+(−30)

=−38h+−30

5 0
2 years ago
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