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Masteriza [31]
3 years ago
5

I need help pls this is my statistics problem

Mathematics
2 answers:
Julli [10]3 years ago
6 0

Answer:

Step-by-step explanation:

joja [24]3 years ago
4 0

Answer:

Step-by-step explanation:well you could just look it up

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The difference of two numbers is 42. the larger number is three less than six times the smaller number. find the numbers.
IgorLugansk [536]
X and y are the numbers
x>y

diffference is 42
x-y=42

larger is 3 less than 6 times smaller
x=-3+6y

subsitute -3+6y for x

x-y=42
-3+6y-y=42
-3+5y=42
add3 to both sides
5y=45
divide both sides by 5
y=9

sub back

x=-3+6y
x=-3+6(9)
x=-3+54
x=51

the numbers are 51 and 9
5 0
3 years ago
Interior angle of triangles
Neporo4naja [7]
I'm not sure what you are looking for. If you want to know the total number of degrees that interior angles of triangles total, they add up to 180°.

Hope this helps! :)
7 0
3 years ago
4) -4+5n=18+3n<br>plz help
GuDViN [60]

-4+5n=18+3n=?  so n=18+3n group like terms which would be

18+4n my beautiful queen

hope this helps

4 0
3 years ago
How many fourths are equivalent to 2\8
sdas [7]

Answer:

1/4

Step-by-step explanation:

8/8=1

6/8=3/4

4/8=2/4

2/8=1/4

3 0
2 years ago
Read 2 more answers
Refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. const
Anton [14]

Step-by-step explanation:

Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.

The standard error is SE = s/√n = 62.6/√50 = 8.85.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

180.56 ± 1.960 × 8.85

180.56 ± 17.35

(163, 198)

Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.

The standard error is SE = s/√n = 49.2/√50 = 6.96.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

152.96 ± 1.960 × 6.96

152.96 ± 13.64

(139, 167)

4 0
3 years ago
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