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polet [3.4K]
2 years ago
6

Which expression is equivalent to 7 3/4 - 1/2 Choose one answer A: 1/2 + 7 3/4 B: 7 3/4 + (-1/2) C: 1/2 + (-7 3/4) D: -7 3/4 + (

-1/2)
Mathematics
2 answers:
Katen [24]2 years ago
8 0

Answer:

D

Step-by-step explanation:

Right in edge2020

umka21 [38]2 years ago
4 0

Answer:

D

Step-by-step explanation:

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Jane Rose’s semimonthly salary is $750. Her yearly salary is A.$9000 B. $12,500 C. $18,000 D. $19,500 E. $21,000
Lunna [17]
A because 750 times 12 because there is 12 months in a year. You get 9000
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2 years ago
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A box holds 42 pieces of red construction paper and 18 pieces of blue construction paper. A piece of paper is pulled out of the
dimulka [17.4K]
<u>First problem :</u>
probability to draw a red paper : 42/(42+18)=7/10

In 110 tries one can thus expect to draw 7/10*110=77 red papers

<u>Second problem :</u>
Since for 150 trials (which will give the least error) we have got 135 yellow balls, we can expect twice as much in 300=150*2 trials, which makes 270 yellow balls.
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3 years ago
John received a 68%, 72%, and 85% on three of his math tests. After his fourth math test he now has a 79% average. What score di
Dvinal [7]

Answer:

68+72+85=225

plus 79 =304 divided by 4 = 76

plus 89 =314 divided by 4 = 78.5

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so the answer is C

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8 0
2 years ago
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stilt scored 5 points less than twice the number scored by dunk. together they scored 43 points. how many points were scored by
gizmo_the_mogwai [7]
Set up a system of equations:

s = 2d - 5
s + d = 43

Where 's' represents the number of points Stilt scored and 'd' represents the number of points Dunk scored.

Plug in 2d - 5 for 's' in the 2nd equation:

s + d = 43

2d - 5 + d = 43

Combine like terms:

3d - 5 = 43

Add 5 to both sides:

3d = 48

Divide 3 to both sides:

d = 16

Plug this back into any of the two equations to find 's':

s + d = 43

s + 16 = 43

Subtract 16 to both sides:

s = 27

So Dunk scored 16 points and Stilt scored 27 points.
4 0
3 years ago
F(x)=2x^4+7x^3-2x^2-19x-12
kirill115 [55]

what do you need done with this question. like do you need it simplified or facotr by grouping what i need more info

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2 years ago
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