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Minchanka [31]
3 years ago
5

In a class of students, the following data table summarizes how many students have a

Mathematics
1 answer:
MrRa [10]3 years ago
8 0

Answer:

3/12+9+3+5

3/29

you would divide those who didn't have dogs but had cats over the total which is 29

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In a recent survey about the types of transportation used for vacation, 36% of the 200 people surveyed chose airplanes, 53% chos
tigry1 [53]
Fist lets find the % of people using boats 
100%- (36+53+2)= 9%
then find the number of people of 9%
200= 100%
B=9%
100B=200x9
B= 18
8 0
3 years ago
at 8:03 am there are 188 empty seats on the train. at 8:10 am there are 160 empty seats. the number of seats decreases by the sa
Vikentia [17]
Given:
8:03 = 188 empty seats
8:10 = 160 empty seat

188 - 160 = 28 empty seats
8:10 - 8:03 = 0:07 minutes

28 / 7 minutes = 4 empty seats per minute

8:00 - 8:03 = 3 minutes
3 minutes * 4 seats per minute = 12 seats

188 + 12 = 200 empty seats at 8:00

8:15 - 8:10 = 0:05 minutes
5 minutes * 4 seats per minute = 20 empty seats
160 - 20 = 140 empty seats at 8:15

200 - 120 = 80 empty seats
80 empty seats / 4 empty seats per minute = 20 minutes
120 empty seats at 8:20.

8:00 = 200 empty seats
200 / 4 = 50 minutes
8:00 + 0:50 = 8:50 is the time when there are no empty seats left.
6 0
4 years ago
How much money did the store make for her sales
lesantik [10]

Answer:

49.70

Step-by-step explanation:

commission = total sales revenue  mutliplied by the commission rate.

6 0
2 years ago
Read 2 more answers
A local little league has a total of 65 players of 20% or left handed how many left-handed players are there
sladkih [1.3K]
Number of players=85 
percent of left handed players=20% 
85*20/100=
simplify that:
85*1/5=
simplify again:
85*5= 17 
17 players are left handed. 
Hope that helps!! 
Have a wonderful day!!
5 0
4 years ago
A rocket is shot straight into the air at an initial velocity of 70 feet/second.
DanielleElmas [232]

Answer: 245 feet

Step-by-step explanation:

Given: The height of the rocket after t seconds is represented by the formula:

h=70t-5t^2

\dfrac{dh}{dt}=70-10t  [Differentiate both sides w.r.t. t]

Put

\dfrac{dh}{dt}=0\\\\\Rightarrow\ 70-10t=0\\\\\Rightarrow\ t=\dfrac{70}{10}=7

Also, \dfrac{d^2h}{dt^2}=-10 i.e. height is maximum at t=7.

Maximum height = h=70(7)-5(7)^2 = 490 - 245= 245\text{ feet}

Hence, the maximum height the rocket reaches = 245 feet.

3 0
3 years ago
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