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masha68 [24]
3 years ago
6

6 + 8(x - 1) = 2(3x + 4)

Mathematics
2 answers:
Serggg [28]3 years ago
8 0
The mistake was is he subtracted at the end instead of dividing, the answer is 5/7
arlik [135]3 years ago
3 0

Step-by-step explanation:

6+ 8x-8 = 6x +8

-2+8x= 6x+8

-6x+8x=2+8

2x=10/2

x=5

The mistake was that u didn't change 6x in ti-6x. when u transfer numbers over the = thery change if positive to negative and if negative to positive

I hope I helped

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Each year the seventh graders who study life science participate in a special field trip to the city zoo in 2010 the school paid
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Answer:

Yes, the price the school pays each year in entrance fees is proportional to the number of students entering the zoo

Step-by-step explanation:

Relationships between two variables is proportional if their ratios are equivalent.

In 2010, the school paid $1,260 for 84 students to enter the zoo.

Ratio of the price the school pays each year in entrance fees to the number of students entering the zoo = 1260:84=15:1

In 2011, the school paid $1,050 for 70 students to enter the zoo.

Ratio of the price the school pays each year in entrance fees to the number of students entering the zoo = 1050:70=15:1

In 2012, the school paid $1,395 for 93 students to enter the zoo.

Ratio of the price the school pays each year in entrance fees to the number of students entering the zoo = 1,395:93=15:1

As 1260:84=1260:84=1,395:93=15:1,

the price the school pays each year in entrance fees is proportional to the number of students entering the zoo.

3 0
2 years ago
An architect was building a
PolarNik [594]

Answer:

57

Step-by-step explanation:

8 0
3 years ago
Question 12 (1 point)
Paraphin [41]
<h3>Answer:   5</h3>

=================================================

Explanation:

Let's consider the expression (x-y)^2. It expands out to x^2-2xy+y^2. The terms are:

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Each of those terms either has a single variable with an exponent of 2, or has the exponents add to 2. Think of 2xy as 2x^1y^1.

In short, this means that the degree of each monomial term is 2.

----------

Now consider (x-y)^3. It expands out into x^3-3x^2y+3xy^2+y^3.

We have terms that either have a single variable and the exponent is 3, or the exponents add to 3. The degree of each term is 3.

----------

This pattern continues.

In general, for (x-y)^n, where n is any positive whole number, the degree of each term in the expansion is n. If you picked any term, added the exponents, then the exponents will add to n.

4 0
2 years ago
THE RATIO OF SEVENTH GRADERS TO EIGHTH GRADERS PARTICIPATING IN THE SCIENCE FAIR IS 4:3 . THERE ARE 18 EIGHT GRADERS PARTICIPATI
slamgirl [31]
4:3 > 8:6 > 12:9 > 16:12 > 20:15 > 24:18 the answer must be 24 seventh graders are there 
5 0
3 years ago
HELP ME PLEASE!!!! Giving 40 points!!!!!!!
weeeeeb [17]
For the rectangle: l x w = Area
l = 18
w = 18

18 x 18 = 324

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1/2bh
1/2(8)16
8(8) = 64

324 + 64 + 64 = 452

Your area should be 452m²

hope this helps
4 0
3 years ago
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