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3 years ago

If 13 key chains cost $38.35, what is the cost of 20 key chains?

2 answers:

5 0

$59.00 u just have to divide the cost of money by the amount of keys and then whatever you get u multiply it by the number of keys u want

Sergio [31]3 years ago

4 0

59 dollars is correct

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Please help with this question

leonid [27]

We know that $\sin(45)=\cos(45)$ and this is the only point when sin and cos are equal lengths. Because both $\sin(45),\cos(45)=\dfrac{\sqrt{2}}{2}$

Now if the sin of 30° is a half that would mean that cos of 60° is also a half.

Hope this helps.

5 0

3 years ago

A line passes through the point (8,3) and has a slope of 3/4 write the equation in slope intercept form

denpristay [2]

The slope intercept formula would be: y=3/4x-3. Hope this helps!

8 0

3 years ago

When factoring an algebraic expression, what property are we "undoing"?

DerKrebs [107]

Answer:

The Distributive Property

4 0

3 years ago

See image attached below keeeeeeeeeeeeeeeeeeeed

emmasim [6.3K]

Answer:

.13%

68.26%

2.28%

47.72%

49.87%

34.13%

Step-by-step explanation:

1.) standardize by subtracting the mean and dividng by the standard deviation

(625-1000)/125= -3

go to a ztable to get .0013 or (1-.9987)

this is equal to .13%

2.)

875<x<1125

standardize both seperately and subtract them

(875-1000)/125= -1 whose probability is .1587 (or 1-.8413)

(1125-1000)/125= 1 whose probability is .8413

.8413-.1587= 68.26%

3.)

Find the probability that someone paid less than 1250 and take its compliment

(1250-1000)/125= 2 which has a probability of .9772

take its compliment (1-.9772)= .0228= 2.28%

4.)

Same process as question 2

(750-1000)/125= -2 which has a probability of (1-.9772) = .0228

(1000-1000)/125= 0 which has a probability of .5

.5-.0228= .4772= 47.72%

5.) same deal as the previous question

(625-1000)/125= -3 which has a probability of (1-.9987)= .0013

(1000-1000)/125= 0 which has a probability of .5

.5-.0013= .4987= 49.87%

6.)same deal the previous question

(875-1000)/125= -1 which has a probability of (1-.8413)=.1587

(1000-1000)/125= 0 which has a probability of .5

.5-.1587= .3413= 34.13%

4 0

3 years ago

Find the x- and y-intercepts of — 4x – 5y = -60.

makkiz [27]

Answer:

y incpy would be 1/5

Step-by-step explanation:

7 0

3 years ago