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adoni [48]
3 years ago
11

Parents of students at a middle school

Mathematics
2 answers:
Rasek [7]3 years ago
7 0
The answer is B 319 parents
Contact [7]3 years ago
6 0

Answer:

<em>(B). 319 </em>

Step-by-step explanation:

\frac{42}{60} = \frac{x}{456}

\frac{7}{10} = \frac{x}{456}

x = \frac{7*456}{10} ≈ <em>319</em>

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What is the x for : -2x^2+24x-72=0
stepan [7]

Answer:

x=6

Step-by-step explanation:

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TO ANYONE WHO WILL HELP ME..
NikAS [45]

Answer:

there isn't a math question

Step-by-step explanation:

4 0
3 years ago
Total health care costs in the United States in 2016 was $1.7 trillion. The US population was 290.9 million. What was the averag
Artemon [7]

Answer:

$5,844

Step-by-step explanation:

Calculation for What was the average amount

spent per person on health care

Using this formula

Average amount=Total health care costs/US population

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6 0
3 years ago
A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x − 1) meters. The
AleksAgata [21]
The problem says that the expression (3x + 5)(5x − 1) <span>represents the area of the floor of the building in square meters. Therefore,  to solve this problem you have to follow the proccedure shown below.

 1. First, to simplify the expression (3x + 5)(5x − 1) you must apply the distributive property. Then, you obtain:

 15x</span>²-3x+25x-5

 2. Then, you have:

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7 0
3 years ago
Find m abc (6x-7) (4x+23)
Salsk061 [2.6K]

Answer:

m∠ABC = 83°

Step-by-step explanation:

The angle ∠abc and ∠dbe are opposed by the vertex. By definition  "<em>Two angles opposite the vertex are congruent or equal</em>"

So ∠abc = ∠dbe

Then, to solve this problem you must match both expressions and clear the variable x.

(6x-7) = (4x + 23)\\6x - 7 -4x = 23\\2x = 30\\x = 15

Now substitute x = 15 in the given expression for the angle ∠abc. (6x-7)

So, we have:

6(15) -7\\= 90 - 7\\= 83\°°

Finally, the angle is 83°

8 0
4 years ago
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