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2 years ago

In Kim’s homeroom, 4 students have no siblings, 9 students have

Mathematics

2 answers:

timama [110]2 years ago

8 0

Answer:

Yes because there is an 82.6% chance of a student chosen at random having one or more siblings.

Step-by-step explanation:

There are a total of 23 students of which 19 have 1 or more siblings. This means there's a 82.6% (19 is what percentage of 23) chance that a student chosen at random will have one or more siblings. Since this percentage is significantly high we can say it's likely that a student chosen at random will have 1 or more siblings.

Papessa [141]2 years ago

5 0

(9+8+2)/(4+9+8+2)=19/23=82%
Therefore very likely

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During a sale, a dress is marked down from a selling price of $80 to a sale price of $60. What is the percent markdown

Zanzabum

$80 x .25 = 20

$80-20=$60

25% markdown

5 0

3 years ago

there are 30 students in mr. Holland music class. If 30% of the students play in the school band, how many students in the class

MA_775_DIABLO [31]

9 students 30% ends up being .3%, multiply .3% by 30 students which equals 9.

3 0

3 years ago

Read 2 more answers

Jayden bought a bike for

alexandr1967 [171]

Answer:

the total cost of the bike including modifying cost is $24,150

Step-by-step explanation:

⇒ bike cost: $21,000

⇒ 15% of $21,000 is 0.15 x 21,000 = 3,150

⇒ initial + additional cost: $21,000 + $3,150 = $24,150

AND WELCOME TO BRAINLY!!

3 0

1 year ago

5x-3x(26x-7x-28x) systems of equation

labwork [276]

Simplifying
5x + 2(8x + -9) = 3(x + 4) + -5(2x + 7)

Reorder the terms:
5x + 2(-9 + 8x) = 3(x + 4) + -5(2x + 7)
5x + (-9 * 2 + 8x * 2) = 3(x + 4) + -5(2x + 7)
5x + (-18 + 16x) = 3(x + 4) + -5(2x + 7)

Reorder the terms:
-18 + 5x + 16x = 3(x + 4) + -5(2x + 7)

Combine like terms: 5x + 16x = 21x
-18 + 21x = 3(x + 4) + -5(2x + 7)

Reorder the terms:
-18 + 21x = 3(4 + x) + -5(2x + 7)
-18 + 21x = (4 * 3 + x * 3) + -5(2x + 7)
-18 + 21x = (12 + 3x) + -5(2x + 7)

Reorder the terms:
-18 + 21x = 12 + 3x + -5(7 + 2x)
-18 + 21x = 12 + 3x + (7 * -5 + 2x * -5)
-18 + 21x = 12 + 3x + (-35 + -10x)

Reorder the terms:
-18 + 21x = 12 + -35 + 3x + -10x

Combine like terms: 12 + -35 = -23
-18 + 21x = -23 + 3x + -10x

Combine like terms: 3x + -10x = -7x
-18 + 21x = -23 + -7x

Solving
-18 + 21x = -23 + -7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7x' to each side of the equation.
-18 + 21x + 7x = -23 + -7x + 7x

Combine like terms: 21x + 7x = 28x
-18 + 28x = -23 + -7x + 7x

Combine like terms: -7x + 7x = 0
-18 + 28x = -23 + 0
-18 + 28x = -23

Add '18' to each side of the equation.
-18 + 18 + 28x = -23 + 18

Combine like terms: -18 + 18 = 0
0 + 28x = -23 + 18
28x = -23 + 18

Combine like terms: -23 + 18 = -5
28x = -5

Divide each side by '28'.
x = -0.1785714286

Simplifying
x = -0.1785714286

3 0

3 years ago

Ms. Howard wrote a test. Part A had true/false questions, each worth points. Part B had multiple choice questions, each worth po

harina [27]

Full question attached

Answer and explanation:

Since x = number of true or false questions correct

And y = number of multiple choice questions correct

And each question for x =2 points

each question for y=3 points

since she then needs a total score of more than 93 to pass, we add up total correct questions and

Inequality equation = 2x +3y >93

5 0

3 years ago