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Marat540 [252]
2 years ago
15

A student scored 80 and 93 on her first two quizzes. Write and solve a compound inequality to find the

Mathematics
1 answer:
coldgirl [10]2 years ago
4 0

Answer:

I think it would be 87.5 as an average between 85 and 90.

Step-by-step explanation:

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(4x^2+3x −5)+(x^2 −7x+10)
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Answer:

5x^{2}  -4x +5

Step-by-step explanation:

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2 years ago
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Given: B bisects EA, FE is parallel to CA, DC is parallel
SIZIF [17.4K]

Answer:

Choice 3: AAS

Step-by-step explanation:

We can prove that by AAS that means we need two congruent angles and one congruent side.

The first angle will be the vertical pair <FBG and <DBC.

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The one side will be \overline{GB} and \overline{BD}.

3 0
2 years ago
A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens an
Aleks [24]

Answer:

<u>The number of pens = 120 and the number of pencils = 200</u>

Step-by-step explanation:

Let the number of pens x, and the number of pencils is y

the cost of one pen $1, and the cost of one pencil $0.5

The cost of the whole purchase was $220

1 * x + 0.5 * y = 220

x + 0.5 y = 220 ⇒ eq.(1)

there were 80 more pencils than pens

y - x = 80 ⇒ eq.(2)

from eq.(2) x = y - 80

By substitution with x from the last equation at eq.(1)

∴ (y - 80) + 0.5 y = 220

1.5y = 220 + 80 = 300

y = 300/1.5 = 200

x = y - 80 = 200 - 80 = 120

<u>So, the number of pens = 120 and the number of pencils = 200</u>

7 0
3 years ago
Convert the distance 403 miles to kilometers
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648.566 Km is the answer. :)

8 0
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A learner finds a deck of 52 cards and then takes one card from the deck. What is the probability that the card is a king? Write
iVinArrow [24]

Answer:

The odds of choosing a club from a full deck is 13/52, or 1/4. Since there are now only 51 cards and 12 clubs, the odds are 12/51, or .2352

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1 year ago
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