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Rudiy27
3 years ago
11

One winter night the temperature fell 15 degrees between midnight and 5 am. By 9 am, the temperature had doubled from what it wa

s at 5 am. By noon, it had risen another 10 degrees to 32 degrees. What was the temperature at midnight?
Mathematics
2 answers:
kvv77 [185]3 years ago
6 0

Answer:

123

Step-by-step explanation:

saveliy_v [14]3 years ago
5 0

Answer:26

Step-by-step explanation:starting from 32

32-10=22 22/2=11 11+15=26

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Basile [38]
I think it’s 18/5 maybe idk try it!
8 0
3 years ago
3 women push a stalled car. Each woman pushes with a 425 N force. What is the mass of the
iogann1982 [59]

Answer:

1,500 Kg

Step-by-step explanation:

Formual for froce is given by

force = mass * acceleration

Force exerted by 1 woman = 425 N

no. of women exerting force = 3

Force exerted by 3 woman = 425 * 3 N = 1275 N

Acceleration produced by 1275 N force = 0.85 m/s^2

Using formula force = mass * acceleration

1275 = mass *  0.85 m/s^2

=> mass = 1275/ 0.85 m/s^2 = 1,500 Kg

Thus, mass of car is 1,500 Kg.

8 0
2 years ago
According to the data, the mean quantitative score on a standardized test for female college-bound high school seniors was 500.
Sveta_85 [38]

Answer:

6.68% of the female college-bound high school seniors had scores above 575.  

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 50

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(scores above 575)

P(x > 575)

P( x > 575) = P( z > \displaystyle\frac{575 - 500}{50}) = P(z > 1.5)

= 1 - P(z \leq 1.5)

Calculation the value from standard normal z table, we have,  

P(x > 575) = 1 - 0.9332= 0.0668 = 6.68\%

6.68% of the female college-bound high school seniors had scores above 575.

7 0
3 years ago
I need help pleasseseeee
Genrish500 [490]
Text me on insta for the answer I don’t see a picture original_loredo
6 0
3 years ago
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Rita has 4 toy horses, 6 toy dogs, and 6 toy cats. She puts all of the toy dogs and cats away. How many toys does she put away?​
Pepsi [2]

Answer:

12 toys

Explanation:

Rita put away 12 toys because she put away all of the toy dogs (6) and all of the toy cats (6). 6 + 6 = 12. So, she put away a total of 12 toys.

7 0
3 years ago
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