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Fed [463]
3 years ago
12

What number should be removed from the list {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13} so that the mean of the remaining number

s is 7.25?
Mathematics
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

4 should be removed

Step-by-step explanation:

Just do a process of elimination and work through the numbers. \frac{1+2+3+5+6+7+8+9+10+11+12+13}{12}  =  7.25

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2) About how many students do not prefer non- fiction?
Mkey [24]

Answer:

about 465 students do not prefer non-fiction

Step-by-step explanation:

first I labeled each section on the pie the

the blue area looks like the smallest so that's most likely 60 students

then orange is 75 students

dark blue is the biggest so its 180 students

gray and yellow are the last ones left and gray is bigger than yellow so gray is 150

the number of students that prefer non-fiction is 100 so you add all the other number to get how many students don't prefer non-fiction=465

I hope this helps and makes sense ;D

3 0
2 years ago
Jodi poured herself a cold soda that had an initial temperature 36 degrees F and immediately went outside to sunbathe where the
mr Goodwill [35]

this can be solve using newtons heating of cooling

(Ts – T) =(Ts – To)*e^(-kt)

Where Ts is the ambient temperature

To is initial temperature

T is the temperature at time t

t is the time

k is constant

fisrt solve the constant k for the given first scenario

(99 – 36) = (99 – 46)*e(-5k)

K = -0.0346

Using k, solve T at t = 13 min

(99 – 46) = (99 – T)*e(-13*(-0.0346)

T = 58.82 degree F

4 0
3 years ago
A cyclist travels 12 km from home to the park.
Leno4ka [110]

Answer:

Speed = 24 km/h

Step-by-step explanation:

Speed =  Distance / Time

A cyclist travels 12 km from home to the park.

She leaves home at 13:00 and arrives at the park at 13:30.

Distance = 12 km

Time = 0.5 Hours

Speed =  12 / 0.5

Speed = 24 km/h

3 0
3 years ago
Read 2 more answers
Does anyone know if each square weighs 5 pounds. what is the weight of a single triangle?
steposvetlana [31]
3 pounds bc there is 5 triangles for 15 pounds of squares
4 0
3 years ago
What is 2 to the power of 2?
padilas [110]
Okay, so you are talking about exponents, so what you are talking about is 2², to find the answer to the exponent you multiply the same number as many times as the exponent (little number) says, so in here we are going to multiply 2 x 2 and the answer is 4. So 2 to the power of 2 is 4.
5 0
3 years ago
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