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stepan [7]
3 years ago
8

-3x-6+(-1) i will give brainliest !

Mathematics
2 answers:
qwelly [4]3 years ago
5 0

Answer:

-3x-7

Step-by-step explanation:

Let's simplify step-by-step.

−3x−6−1

=−3x+−6+−1

Combine Like Terms:

=−3x+−6+−1

=(−3x)+(−6+−1)

=−3x+−7

Answer:

=−3x−7

tekilochka [14]3 years ago
3 0
If you do on the side like how i did it helps if u need help finding if the final answer is a positive or a negative when doing questions like this :)

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Eight people are entered in a race. If there are no ties, in how many ways can the first three places come out? a.336 b.368 c.67
Luden [163]
The first thing to do is to calculate how many ways you can choose 3 people from a set of eight.  In order to do this, we need to use the attached formula.
(The letter 'n' stands for the entire set and 'r' stands for the number of objects we wish to choose.)
So we wish to choose 3 people ('r') form a set of 8 ('n')
combinations = n! / r! * (n - r)!
combinations = 8 ! / (3! * 5!)
combinations = 8 * 7 * 6 * 5! / (3!) * (5!)
combinations = 8 * 7 * 6 / 3 * 2
combinations = 56

Now of those 56 combinations, the 3 people can finish in 6 different ways.
For example, persons A, B and C could finish
ABC or ACB or BAC or BCA or CAB or CBA

So to get the TOTAL combinations we multiply 56 * 6 which equals
336 so the answer is (a)


8 0
3 years ago
What is the digit in the ten billions place in this number 30,242,386,651
Minchanka [31]
It’s 1 that’s in the ten billions
8 0
3 years ago
The cost of a stove to a store owner was $500, and she sold the stove for $1080. What was her percent of profit based on cost?
Juliette [100K]

Answer:

116%

Step-by-step explanation:

Cost Price (C. P.) = $500

Selling Price (S. P.) = $1080

Profit = SP - CP = $1080 - $500 = $580

Profit percent

=  \frac{Profit}{CP}  \times 100 \\  \\  =  \frac{580}{500}  \times 100 \\  \\  =  \frac{580}{5}  \\  \\  = 116 \%

3 0
3 years ago
Is anyone able to give a step by step process to this?
Thepotemich [5.8K]

Answer:

The value of y is 3 cm.

Step-by-step explanation:

Given,

Perimeter of triangle = 29\ cm

Solution,

Lets redraw the triangle with nomenclature ABC, given in the attachment.

∴P(ΔABC) = 29 cm  (P stands for perimeter)

Length of AB = y+9

Length of BC = 2y

Length of CA = 4y-1

Now, we all know that the perimeter of a triangle is sum of all the three sides of triangle.

P(ΔABC) = Length of AB+Length of BC+Length of CA

On substituting the values, we get;

(y+9)+2y+(4y-1)=29\\y+2y+4y+9-1=29\\7y+8=29\\7y=29-8\\7y=21\\y=\frac{21}{7} =3\ cm

Length of AB =y+9=3+9=12\ cm

Length of BC =2y=2\times3=6\ cm

Length of CA =4y-1=4\times3-1=12-1=11\ cm

Hence the value of y is 3 cm.

8 0
4 years ago
After a party, 5/8of a pizza was left .For dinner, Olivia ate 3/8 of the
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1/4 of the pizza was left after dinner
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