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4 years ago

X+3+7=2x-10x-x someone please help me

Mathematics

2 answers:

Dima020 [189]4 years ago

5 0

Answer:

Step-by-step explanation:

x=-1

Factor out the x and solve

Alexxx [7]4 years ago

4 0

Answer:

x = -1

Step-by-step explanation:

Add like terms (3 and 7, 2x and -10x and -x)

x + 3 + 7 = 2x - 10x - x

x + 10 = -9x

Subtract x from both sides:

10 = -10x

Divide both sides by -10:

-1 = x

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vladimir2022 [97]

Answer:

Step-by-step explanation:

Given that Kelsay opened a bag of marbles.

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Total number of marbles = 144

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Hence divide total number by no of colours to get the answre

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3 years ago

2. What is sampling variability?

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Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

The perimeter of a particular square and the circumference of a particular circle are equal. What is the ratio of the area of th

Tasya [4]

Ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

In terms of fraction $\frac{\pi}{4}$

Solution:

Given that perimeter of a particular square and the circumference of a particular circle are equal

To find: ratio of the area of the square to the area of the circle

Let the side of square be "a" and radius of circle be "r"

The perimeter of square is given as:

Perimeter of square = 4a

The circumference of circle is given as:

Circumference of circle = 2πr

From given,

perimeter of a particular square and the circumference of a particular circle are equal

perimeter of a particular square = circumference of a particular circle

$4a = 2 \pi r\\\\a = \frac{\pi r}{2}$

We need to find the ratio of the area of the square to the area of the circle.

We know that,

$\text{ Area of the square }= a^2\\\\\text{ Area of the circle }= \pi r^2$

Ratio of area of square to area of circle = $a^2 : \pi r^2$

Substituting the value of $a = \frac{\pi r}{2}$ in above ratio,

Ratio of area of square to area of circle = $(\frac{\pi r}{2})^2 : \pi r^2$

On reducing to lowest terms we get,

⇒ $\frac{\pi^2 r^2}{4} : \pi r^2 = \frac{\pi}{4} : 1$

In terms of fraction we get,

$\frac{\pi}{4} : 1 = \frac{\frac{\pi}{4}}{1} = \frac{\pi}{4}$

Thus ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

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4 years ago

Alice chose five positive integers and found that their product was even. What is the maximum number of odd integers she could h

Nat2105 [25]

Answer:

In order for a product to be even, at least one factor must be even (so that the product is divisible by 2). The minimum number of even integers she could have chosen is 1, so the maximum number of odd integers she could have chosen is 4 :)

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3 years ago

Dylan owns a bag that contains 7 blue marbles, 5 purple marbles, 12 red marbles, and 6 orange marbles. If he randomly pulls a ma

faust18 [17]

Answer:

The probability of him pulling a red marble is 12 to 30. The probability of him pulling a blue or purple marble is also 12 to 30.

Step-by-step explanation:

7+5+12+6=30 (all colors)

12 to 30 red ones

7+5+12+6=30 (all colors) and

7+5=12 (blue + purple)

12 to 30 blue or purple

5 0

2 years ago