2 years ago

How can she might choose a random sample of five students from her class of 35 students?

Mathematics

1 answer:

shtirl [24]2 years ago

7 0

Answer:

who?

Step-by-step explanation:

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Quick algebra 1 question for 10 points!

zaharov [31]

<u>Answer:</u>

○ $x = -7$

<u>Step-by-step explanation:</u>

Given the equation:

$10(x + 10) - 4 = 11 - 5(2x + 11)$ ,

to solve for $x$ , we have to rearrange the equation to make $x$ its subject.

$10(x + 10) - 4 = 11 - 5(2x + 11)$

⇒ $10x + 100 - 4 = 11 - 10x -55$ [expand brackets]

⇒ $10x + 96 = -44 - 10x$

⇒ $10x + 10x + 96 = -44$ [add $10x$ to both sides]

⇒ $20x + 96 = -44$

⇒ $20x = -44 - 96$ [subtract 96 from both sides]

⇒ $20x = -140$

⇒ $x = \frac{-140}{20}$ [divide both sides by 20]

⇒ $x = \bf-7$

6 0

2 years ago

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A flare was launched straight up from the ground with an initial velocity of 176ft/s and returned to the ground after 11 s.

posledela

Answer i am not sure wht it is srry

Step-by-step explanation:

3 0

2 years ago

The isosceles triangle has a perimeter of 7.5 m.

RUDIKE [14]

Answer:

2.1 + 2x = 7.5

Step-by-step explanation:

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2 years ago

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What is the surface area of the following cylinder in square centimeters? 25 mm 1 cm 471 cm 2 2 31.4 cm 47.1 cm 2 54.95 cm 2

Fittoniya [83]

Answer:

54.95 cm 2.

Step-by-step explanation:

5 0

2 years ago

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I just need to make sure my answer is correct :)

vampirchik [111]

Answer:

Its positive

Step-by-step explanation:

3x - 5 = -3

3x = 2

x = 2/3

2/3 is positive

5 0

3 years ago