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blondinia [14]
4 years ago
7

3.5x + 0.8 = 18.24 - 5.9x​

Mathematics
2 answers:
notka56 [123]4 years ago
5 0

Answer:

x=1.85531914

Step-by-step explanation:

natita [175]4 years ago
3 0

Answer:

x

=

1.85531914

Step-by-step explanation:

Step 1: 9.4

x

+

0.8

=

18.24

Step 2: 9.4

x

=

17.44

Divide each term by

9.4

and simplify.

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BRAINLIEST PLUS 30 points
Anastasy [175]
You already know x+3y is 10 as they are both indicated as being the same on the diagram.

We then subtract 10 and 10 from the total perimeter, to figure out the top and bottom’s total length.

54-10-10=34

Now we add the top (3x-y) to the bottom (7x-2y) by collecting like terms.

3x-y+7x-2y=10x-3y

We form the simultaneous equation now.

x+3y=10
10x-3y=34

From here we can form a single equation.

x+3y+10x-3y=10+34

+3y and -3y cancel each other out so we now have:

x+10x=10+34
which is:
11x=44
Divide 44 by 11.
x=4

We now substitute x=4 into x+3y which we know equals 10.

(4)+3y=10
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3y=6
Divide 6 by 3.
y=2

We now have the answer x=2 and y=4.
5 0
3 years ago
Read 2 more answers
A group consists of fivefive men and sevenseven women. FourFour people are selected to attend a conference.
exis [7]

Answer:

Step-by-step explanation:

a.

4 people can be selected in ways=12 P4=12×11×10×9=11880

b.

4 women can be selected in  ways=7P4=7×6×5×4=840

c.

P=\frac{840}{11880} =\frac{7}{99}

6 0
3 years ago
Simplify: −6(14x - 23x + 56x)<br><br> A)-212x B)-x C)2x D)34x
Cloud [144]
Hey there! :D

Distribute the -6. Multiply everything by -6. 

-6*14x= -84x

-6*-23x= 138x

-6*56= -336x

We now have: 138x-84x-336x

138x- 420x

-282x <== that is the answer

I'm assuming that is B, since there seems to be missing information. 

I hope this helps!
~kaikers 

3 0
4 years ago
3 less than a number his -12.
gizmo_the_mogwai [7]

Answer:

-9

Step-by-step explanation:

7 0
3 years ago
Please need help will give brainliest
Svetach [21]

H(6) =.

The number in parentheses is the x value it will be equal to the y value.

When x = 6 the blue line is at y = 8

H(6) = 8

8 0
3 years ago
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