MATHEMATICS MIDDLE SCHOOL

Marianne collects coffee mugs from places she visits when she goes on vacations. She displays her 81 coffee mugs over her cabinets in her kitchen, including 8 mugs from California.If one of the coffee mugs accidentally falls to the ground and breaks, what is the probability that it is a California coffee mug?
!!!!!!!!PLEASE ANSWER FAST!!!!!!!!

Answers

Answer 1

Answer: It would be the fraction 8/81

Answer 2

Answer:

Answer:

8/81

Step-by-step explanation:

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The working out for 637 divided by 13
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What is the fuction eqation for (0,-2)and (5,-1)

Answers

y = mx + b

m is the slope
b is the y-intercept

First find the slope

$slope = (y_2-y_1)/(x_2-x_1) = (-1+2)/(5-0)= (1)/(5)$

So far we have: y = 1/5x + b

Now we need to find b

y = 1/5x + b

Plug in (0,-2)

-2 = 1/5(0) + b

-2 = b

So the final equation is $\boxed{y=(1)/(5)x-2}$

f(x) = 1/5 x - 2

-2 is your y intercept and using (y-y)/(x-x) you can get slope

(-1 - - 2)/ (5-0) = (-1+2) / (5) = 1/5

What is cos 23? I’m confused For some reason

Answers

Answer:

Step-by-step explanation:

cos 23 = adjacent side / hypotenuse

= 12/13.

Answer:

Step-by-step explanation:

Just put cos23 in your calculator then (=)

and finally press (S-D)

Save this answer(on sheet or paper) and check these answers by putting in your calculator each other and (S-D).

What point's coordinates will not change signs whether it is reflected over the x-axis or the y-axis?(1, 0)
(0, 1)
(0, 0)
(1, 1)

Answers

(0,0)

Because it is the point of origin

Answer:

Step-by-step explanation:

A student government organization is selling Christmas trees as a fundraiser. On Friday, they sold 5 noble fir trees and 3 douglas fir trees for a total of $420. On Saturday, 12 noble fir trees and 9 douglas fir trees were sold for a total of $1,080. What is the cost per tree for each type?how much is 1 douglas?
how much is 1 noble fir?

Answers

You have to do a system, lets say x are noble fir trees and y are douglas fir trees,
5x+3y=420
12x+9y=1080

if you solve this you get,
x=60 and
y=40
SO Noble fir trees cost $60 and Douglas fir trees cost $40.

0.45013 in scientific notation

Answers

When putting numbers into scientific notation, always put the decimal after the ones place. In this case, you would put the decimal after 4 and before 5 (in between). From there, you count how many decimal places you moved in order to change it into that form.

0.45013 would change to 4.5013 and you would have to multiply it by 10 to the negative power of 1 (you're only moving back one place).

4.5013 x 10^-1

Hope this helps :)

What numbers go into 51 evenly

Answers

3 and 17 go into 51 evenly.

if you multiply 3 and 17 you get 51.

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