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harina [27]
3 years ago
15

20 points How on Earth am I supposed to do this

Mathematics
1 answer:
goblinko [34]3 years ago
3 0

Answer: -89

Step-by-step explanation:

So your equation is

- 9(a) - 7(x) - 9(c) - 9(b) - 7(y)

You know that (a) (b) and (c) = -1

You also know that (x) and (y) = 7

So, when you put this into the equation, it will look like this:

- 9(-1) - 7(7) - 9(-1) - 9(-1) - 7(7)

When you work that out you will get left with your answer, which is -89.

HOPE THIS HELPS!!!

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13 please I have no idea what the steps for this is
Ilya [14]

Answer:

UV=142

Step-by-step explanation:

21x-13=10x+31

+13 +13

21x=10x+44

-10x=-10x

11x=44

÷11 ÷11

x=4

now substitute 4 in place of x (only have to solve one)

21(4)-13= 71

now multiply your answer by 2

71×2=142

6 0
3 years ago
N n N n N n N n N n n N N Suppose that you were to draw a random sample of one letter from the set of letters above. Two possibl
kvv77 [185]

Answer:

10/13 = 76.92%

Step-by-step explanation:

The question is missing some information because the underline is missing.

If we make table based on if the letter upper case (A) or lower case(a), and if the letter underlined(B) vs not underlined(b) the data will be:

             A          a

B           4           3         7

b           3           3         6

total      7          6

There are total of 13 letter there. The calculation will be:

P(A or B) = P(A) + P (B) - P(A and B) = (7 + 7 -4) / 13= 10/13 = 76.92%

4 0
3 years ago
Write a word problem whose solution is |-70|=70
devlian [24]
What is the absolute value of -70.

6 0
3 years ago
URGENT URGENT URGENT!!!<br> HELP PLEASE!!
viva [34]

Answer:

Step-by-step explanation:

I think it’s b correct me if I’m wrong

3 0
3 years ago
Read 2 more answers
What the hell WHERES THE NUMBERS TO THE VARIABLE
Svetradugi [14.3K]

Answer:

t=\frac{d}{r}

There are no numbers because it is changing the subject of the equation.

Step-by-step explanation:

d=rt

\frac{d}{r} =t

3 0
3 years ago
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