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Serga [27]
4 years ago
10

I need to know the answer to those two equations

Mathematics
1 answer:
sladkih [1.3K]4 years ago
3 0
6(3x-5)-7x=25
18x-30-7x=25
11x=55
x=11
-2(5+6m)+16=-90
-10-12m+16=-90
-12m+6=-90
-12m=-96
m=8
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Solve the inequality <br> 2(4+2x)≥5x+5
iris [78.8K]
  • Answer:

<em>x ≤ 3</em>

<em>x ∈ [ 3 ; +oo )</em>

  • Step-by-step explanation:

<em>2(4 + 2x) ≥ 5x + 5</em>

<em>8 + 4x ≥ 5x + 5</em>

<em>8 - 5 ≥ 5x - 4x</em>

<em>3 ≥ x</em>

<em>x ≤ 3</em>

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3 0
3 years ago
There are two triangles. Onehas a base of 8 cm. and a height of 10 cm. The other has a base of 5 cm
Leni [432]
Explanation:
A
r
e
a
△
=
1
2
⋅
b
a
s
e
⋅
h
e
i
g
h
t
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1
a
r
e
a
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=
40
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a
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13

=
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40
>
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4 0
3 years ago
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​9 /4 ​​ − ​6 /​1 ​​ + ​3 /​1 ​​=
Yuliya22 [10]
-3/4 is the answer.

First you must make all the denominators the same = 9/4 = 9/4, 6/1 (mulitply both sides by 4) = 24/4, 3/1 (multiply both sides by 4) = 12/4. So we come out with 9/4 - 24/4 +12/4.

Then solve. 9/4 - 24/4 +12/4 = -3/4
3 0
4 years ago
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Rashid [163]

Answer: 3X2+4x=-2

Step-by-step explanation:because thats the mathematic equation for a average square

8 0
3 years ago
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Find the determinant of the following matrix.<br> [2 4 ]<br> [ 3 9 ]
DIA [1.3K]

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It is 6

Step-by-step explanation:

6 0
3 years ago
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