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sergiy2304 [10]
3 years ago
10

What is the probability of selecting a seventh-grader from a school that has 250 sixth-graders, 225 seventh-graders, and 275 eig

hth-graders?
Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

3/10 or 0.3 or 30%

Step-by-step explanation:

Its 225/750 total students

We simplify this by dividing by 5

45/150

Divide by 5 again

9/30

Divide by 3

3/10

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(10 - 1 ) x 2 + 2 x 3 what is the value of the expression
mash [69]

Answer:

24

Step-by-step explanation:

(10-1) x 2 + 2 x 3

9 x 2 + 6

18 + 6

24

5 0
3 years ago
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Simplify the expression 21p + 9q2 + 10p + q2 by combining like terms.
Vera_Pavlovna [14]

Answer:

31p + 10q2

Step-by-step explanation:

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3 years ago
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On a snow day, Jada created two snowmen in her yard. Snowman A was built to a height of 51 inches and Snowman B was built to a h
MaRussiya [10]

From the graph of the linear functions, we have that both snowman's will have the same height of 21 inches after 5 hours.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For this problem, we have that:

  • The initial height is the intercept.
  • The melting rate, as a negative, is the slope.

Hence the functions are given as follows:

  • A(t) = 51 - 6t.
  • B(t) = 36 - 3t.

The functions are graphed at the end of the answer, with <u>A(t) in red and B(t) in blue,</u> and they intersect at (5,21), meaning that both snowman's will have the same height of 21 inches after 5 hours.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

7 0
2 years ago
Consider the line y=-3/5x+3
liberstina [14]

Answer:

its 5,0

Step-by-step explanation:

i took the test

6 0
3 years ago
A study of the effect on the human digestive system of potato chips made<br>with a fat substitute
il63 [147K]

Answer:

Perform an experiment

Step-by-step explanation:

The experiments state that it is the test which is to be carried to confirm or refute the hypotheses they had about a specific subject. Therefore, the study findings will be based on the outcome of these experiments.

Now, according to the given situation, an analysis of the impact of potato chips on the human digestive system with fat replacement is refer to perform an experiment.

So, the right answer is to perform an experiment.

5 0
3 years ago
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