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s2008m [1.1K]
3 years ago
15

8(3x-1)=-80 ^^ also show the check pls

Mathematics
2 answers:
mylen [45]3 years ago
8 0
8(3x-1)=-80
8•3x=24x
8•1=8
24x-8=-80
+8 +8
---------------------
24x=-72
------ -----
24 24

x=-3
iragen [17]3 years ago
7 0
X=-3

using the distribution property, plug in -3 as x
this should give you your answer.
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can someone help me simplify this: the quantity 10 times x to the 6th power times y to the third power plus 20 times x to the th
VMariaS [17]
10x^6y^3 + 20x^3y^2 / 5x^3y = 
5x^3y (2x^3y^2 + 4y) / 5x^3y=
<span>2x^3y^2 + 4y
</span>
First you find what the expressions 10x^6y^3 and 20x^3y^2 have in common, and that is 5x^3y, which is the same as the denominator, so you can easily divide them and get 1. 
<span>Hope you understand!

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8 0
3 years ago
Solve this question ​
ryzh [129]

Answer:

80

Step-by-step explanation:

Initial ratio:

Teachers to students

1 : 15

Ratio after:

Teachers to students

3 : 40

The number of students did not change, so we can make the students of the initial ratio and the students of the ratio after the same.

1 : 15 =  8 : 120

3 : 40 = 9 : 120

120 units = 1200

1 unit = \frac{1200}{120} =10

Initial teachers = 8 units = 8*10=80

7 0
3 years ago
Read 2 more answers
Which set of ordered pairs represents a function?
vovangra [49]
B. is the answer I believe since most are not functions
4 0
3 years ago
Read 2 more answers
2x(9-5x) - (-4x-36x)
allochka39001 [22]
I got 48x
First by distributing 2x to 9-5x=
18x-10x
Then adding a 1 in front of - making -4x-36x to 4x+36x=40x
8x+40x=48x
7 0
3 years ago
the expression 5n+2 can be used to find total cost in dollars of bowling where n is the number of games bowled 2 represents the
exis [7]
So justsubsitue 3 for n
5(3)+2
15+2
17
answer is 17
3 0
4 years ago
Read 2 more answers
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