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3 years ago

I’m lost in my train of thought May someone please help please and thank you:)

Mathematics

1 answer:

Luda [366]3 years ago

3 0

Answer:

118 and 3 /7

Step-by-step explanation:

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In the past year, Hans watched 38 movies that he thought were very good. He watched 95 movies over the whole year. Of

Len [333]

Answer:

40%

Step-by-step explanation:

38×100=3800÷95=40

40%×95=38

8 0

3 years ago

In a certain Algebra 2 class of 25 students, 13 of them play basketball and 11 of them play baseball. There are 4 students who p

Flauer [41]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

Given: There are 2 classes of 25 students.

13 play basketball

11 play baseball.

4 play neither of sports.

Lets assume basketball as "a" and baseball as "b".

We know, probablity dependent formula; P(a∪b)= P(a)+P(b)-p(a∩b)

As given total number of student is 25

Now, subtituting the values in the formula.

⇒P(a∪b)= $\frac{13}{25} +\frac{11}{25} -\frac{4}{25}$

taking LCD as 25 to solve.

⇒P(a∪b)= $\frac{13\times 1+11\times 1-4\times 1}{25} = \frac{20}{25}$

∴ P(a∪b)= $\frac{4}{5}$

Hence, the probability that a student chosen randomly from the class plays both basketball and baseball is $\frac{4}{5}$ .

6 0

3 years ago

represents a line that passes through (3, –2) with a slope of negative StartFraction 4 Over 5 EndFraction?

erik [133]

Answer:

$y = \frac{4}{5} x - \frac{22}{5}$

Step-by-step explanation:

$y = mx + b$

$- 2 = \frac{4}{5} (3) + b \\ - 2 = \frac{12}{5} + b \\ - 2 - \frac{12}{5} = b \\ - \frac{10}{5} - \frac{12}{5} = b \\ - \frac{22}{5} = b$

Therefore, the equation of the line that goes through point (3, -2)and has slope ⅘ is

$y = \frac{4}{5} x - \frac{22}{5}$

6 0

2 years ago

In a certain year, there were 88 female officials in Congress, which is comprised of the House of Representatives and the Senate

Ainat [17]

Answer:

71 in House of Representatives
17 in Senate

Step-by-step explanation:

Let h and s represent the numbers in the House and Senate, respectively. Then we have ...

h + s = 88

h - s = 54

Subtracting the second equation from the first gives ...

(h +s) -(h -s) = (88) -(54)

2s = 34 . . . . . simplify

s = 17 . . . . . . . divide by 2

h = 88 -17 = 71 . . . . find the other value using the sum equation

There were 71 females in the House of Representatives, and 17 females in the Senate.

3 0

2 years ago

4x + y=22<br> y=x-3<br> Need fast help plz

Flura [38]

Answer:

x=5

Step-by-step explanation:

4x+(x-3)=22

5x-3=22

+3 +3

5x=25

/5 /5

x=5

8 0

3 years ago