Leslie creates designer bracelets with gemstones. Her most recent order included a total of 7 bracelets. It takes 14 stones to make one bracelet. Write and solve an equation that represents how many stones were used for the order.
7s = 14; s = 2 stones
s/14 = 7 ; s = 98 stones
s + 7 = 14; s = 7 stones
s − 7 = 14; s = 21 stones

The percent increase in the total number of students on the honor roll is   9.4% .

In the question,

it is given that ,

last year , the number of boys in the honor roll is = 60 boys ,

the number of girls in the honor roll is = 100 girls ,

total number of students last year = 160

percent increase in the number of boys in the honor roll is = 20% ,

so , number of boys become = 60 + (0.20*60) = 72 boys ,

percent increase in the number of girls in the honor roll is = 3% ,

so , number of girls become = 100 + (0.03*100) = 103 girls ,

total number of students this year = 103 + 72 = 175 .

increase in number of students = 175 - 160 = 15

So , percent increase is = (15/160) × 100

= 0.09375 × 100

= 9.375 %

≈ 9.4%

Therefore , the percent increase is 9.4% .

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Answer: Sam

Step-by-step explanation: I am pretty sure. Hope you find it helpful!

Answer:

Step-by-step explanation:

y = 1/6x + 5/6

-5x + 6(1/6x + 5/6) = -11

-5x + x + 5 = -11

-4x + 5 = -11

-4x = -16

x = 4

y = 2/3 + 5/6

y = 7/6 or 1 1/6

(4, 7/6)

The probability that both hats are different colors is; 0.7425  

We are given;

Total number of hats = 30 hats

Number of green hats = 5 hats

Number of blue hats = 7 hats

Number of red hats = 12 hats

Number of brown hats = 6 hats

Now, if Mary selects two hats at random, then the probability that they are different colors is;

P(they are different colors) = 1 - P(both are the same color)

P(both are the same color) = (⁵/₃₀ * ⁴/₂₉) + (⁷/₃₀ * ⁶/₂₉) + (¹²/₃₀ * ¹¹/₂₉) + ( ⁶/₃₀ * ⁵/₂₉)

= (20 + 42 + 132 + 30)/(30*29)

=  224/(30*29)

= 0.2575

Thus;

P(they are different colors) = 1 - 0.2575

P(they are different colors) = 0.7425  

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Part a

This represents a translation of 2 units to the right. So, the points are [tex](6, -3), (0,0), (8, -15)[/tex].

Part b

This represents a translation of 9 units up. So, the points are [tex](4,6), (-2,9), (-10,-6)[/tex].

Part c

This represents a translation of 3 units left and 1 unit down. So, the points are [tex](1, -4), (-5, -1), (-13, -16)[/tex].

Answer:

C

Step-by-step explanation:

x² + 6x - 7 = 0 ( add 7 to both sides )

x² + 6x = 7

to complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = 7 + 9

(x + 3)² = 16

Answer: Number of small boxes = 7, Number of large boxes =3

Step-by-step explanation:

Let x= Number of small boxes , y = Number of large boxes.

As per given , 30x+55y=375  (i)

x+y=10   (ii)

Multiply (ii) by 30, we get

30x+30y=300    (iii)

Eliminate (iii) from (i), we get

25y=75

⇒ y= 3   [Divide both sides by 25]

Put y=3 in (ii), we get

x+3=10 ⇒ x=7

Hence,  Number of small boxes = 7, Number of large boxes =3

Hope this helps!!! :)

Answer:

18x^2 + 9x - 20

18x^2 + 24x - 15x - 20

6x(3x+4) - 5(3x+4)

Therefore, (6x-5)(3x+4)

Answer:

5 tables

Step-by-step explanation:

Let x be the number of tables the school needs to rent, and c be the total cost of renting the tables.

We can use the following equation to represent the cost of renting from the first company:

c = 20 + 12x

And we can use the following equation to represent the cost of renting from the second company:

c = 30 + 10x

As c is the same constant in both equations, we can say the following:

20 + 12x = 30 + 10x

Now we can solve this equation by simplifying:

20 + 12x = 30 + 10x

20 + 2x = 30

2x = 10

x = 5

Therefore, the school will need to rent 5 tables for the cost to be the same from both renting companies.

Answer: 5 tables

Step-by-step explanation:

The first rental company will charge $32 for one table.

The second rental company will charge $40 for one table.

So if we make a table, and keep adding $12 to the first company and $10 to the second it will look like this.

First company                          Second company                   Table

 $32                                                  $40                                     1

 $44                                                  $50                                     2

 $56                                                  $60                                     3

 $68                                                  $70                                     4

 $80                                                  $80                                     5

Therefore, the school can rent 5 tables for the same price in both companies.

The five requirements that a person should know about their pet before owning one are shown below.

An animal that you keep as a pet in your home is for your entertainment and company.

There are 5 requirements that a person should know about their pet before owning one.

Freedom from thirst and hunger All canines and felines have to have quick access to food and clean water.

Liberation from discomfort.

Freedom from discomfort, harm, or illness.

Having the ability to act normally.

Freedom from anxiety and pain.

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Answer:

(1/2x+3)(1/2x+3)

         OR

[tex](1/2x+3)^{2}[/tex]

In linear equation, The number of miles that he walked when he was covered and 2/3 of the distance to the gym will be 7/30 miles.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.

                                     Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

Patrick walks 9/10 miles to the gym.

Then the number of miles that he walked when he was covered 2/3 of the distance to the gym will be

⇒ 9 / 10 - 2 / 3

⇒ (27 - 20) / 30

⇒ 7 / 30

The number of miles that he walked when he was covered and 2/3 of the distance to the gym will be 7/30 miles.

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Answer:

25

64

Step-by-step explanation:

x^2

5^2

25

(X+3)^2

(5+3)^2

8^2

64

Hopes this helps please mark brainliest

Answer:

a) x = 25

b) 16

Step-by-step explanation:

a) x^2 = 5^2 = 25

b) (x + 3)2 = (5 + 3)2= (8)2 = 16

Answer:

-62272

Step-by-step explanation:

Multiplication on a piece of paper also a positive multiplied by a negative is negative so -556 * 112 = -66272.

Answer: 15

Step-by-step explanation:

15+3=18

When solving a system of linear equations by substitution, normally, we want to try to solve for the easiest one to get to or we choose a variable with unit coefficient.

A variable is a quantity that could change depending on the circumstances of an experiment or mathematical problem. Typically, a variable is denoted by a single letter. The general symbols for variables most frequently used are the letters x, y, and z.

A constant component of a word as opposed to a variable. a measurement of some property or characteristic using a number (as of a substance, device, or process)

There are many factors, it is all a matter of preference, normally, we want to try to solve for the easiest one to get to

example;

if we have

(x-3)^2+y=9

we would solve for y because it is less tricky or we choose a variable with unit coefficient.

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The inequality which represents is 2x + 3y ≤ 12 where x is the number of daisies and y is the number of tulips.

A mathematical phrase in which the sides are not equal is referred to as being unequal. In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.

Suppose the cost of one daisy is x while the cost of one tulip is y.

2x + 3y will be totally spent and it can be almost $12.

2x + 3y ≤ 12

Hence "The inequality which represents is 2x + 3y ≤ 12 where x is the number of daisies and y is the number of tulips.".

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Answer: The answer is 121

The value of the given expression is 15% of $28 = (15×28)/100 = $4.2, 20% of $74 = (20×74)/100 = $14.8, 18% of $128 = (18×128)/100 = $23.04

What is an expression?

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

Here, we have

Given the following expression and we have to find the values of given expressions.

15% of $28 = (15×28)/100 = $4.2

20% of $74 = (20×74)/100 = $14.8

18% of $128 = (18×128)/100 = $23.04

Hence, the value of the given expression is 15% of $28 = (15×28)/100 = $4.2, 20% of $74 = (20×74)/100 = $14.8, 18% of $128 = (18×128)/100 = $23.04

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Answer:

(fog)(x) =  4x^2 -12x +10

(gof)(x) = 2x^2 -1

Step-by-step explanation:

(fog)(x) = (2x-3)^2 + 1

= 4x^2 + 9 -12x +1

= 4x^2 -12x +10

(gof)(x) = 2(x^2+1)-3

= 2x^2 +2 -3

= 2x^2 -1

By solving the linear matrices we got the values X = 1000000  , Y = 800000 ,  Z = 200000

According to algebra, an equation is a statement that shows the equality of two mathematical expressions. For instance, the equation 4x + 5 = 15 consists of the two equations 4x + 5 and 15, which are separated by the 'equal' sign.

According to the given information

X + Y + Z  =  2000000

0.07X + 0.085Y + 0.095Z = 157000

Y = 4Z

Y = 4Z is substituted into the first and second equations as follows:

X + 5Z = 2000000

0.07X + 0.085 (4Z) + 0.095Z = 157000

X = 2000000 - 5Z

0.07X + 0.435Z = 157000

0.07 (2000000 - 5Z) + 0.435Z = 157000

140000 - 0.35Z + 0.435Z = 157000

0.085Z + 140000 = 157000

0.085Z = 17000

Z = 200000

Y = 800000

X = 1000000

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Answer:

No

Step-by-step explanation:

5+10=15, which cannot be less than 17

The lengths of AN=2.5cm and MN=3.5cm

What is similar triangle?

Similar triangles are triangles that have a similar form, however their sizes might vary.

Main body:

IN ΔAMN ≈ΔABC

Since MN∣∣BC

∠AMN=∠ABC (Corresponding angles)

∠ANM=∠ACB (Corresponding angles)

∴ΔAMN∼ΔABC(By $$AA similarity criterion)

⇒AM/AB =AN/AC=MN/BC (CPCT)

since , M is the mid point of AB.

AM = 1/2 AB  , OR

AM/AB = 1/2

AM/AB =AN/AC = 1/2

AN/AC = 1/2

AN/5= 1/2

AN = 2.5 cm

AM/AB =MN/BC = 1/2

​ [∵BC=7cm]

MN/7 = 1/2

MN= 7/2 =3.5

Hence , the lengths of AN=2.5cm and MN=3.5cm

the complete question is :

In triangle ABC, M is mid-point of AB and a straight line through M and parallel to BC cuts AC at N. Find the lenghts of AN and MN, if BC=7cm and AC=5cm.

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Answer:

1. This study uses blocking to reduce variability from known factors.

2. This study uses random sampling.

Step-by-step explanation:

Hope it helps!

Answer:

Step-by-step explanation:

y = 6x + 42

6x + 42 = y

6x = y - 42

x = (y - 42)/6

The exterior angle to ∠X is 104.25°

The exterior angle theorem states that when a triangle's side is extended, the resultant exterior angle formed is equal to the sum of the measures of the two opposite interior angles of the triangle. The theorem can be used to find the measure of an unknown angle in a triangle.

from the above definition , if ∠Y = 62.45° and ∠Z = 41.8°

It means from exterior angle theorem that

exterior ∠X = ∠Y + ∠Z

exterior ∠X  = 62.45° + 41.8°

exterior ∠X  = 104.25°

In conclusion the exterior angle X is 104.25°

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The Assessment Triangle and the Domains and Dimensions of the Assessment Framework.

Perimeter of A/perimeter of B = a/b

Given that triangles ABC and DEF are similar triangles, we have the following:

Perimeter of triangle ABC = x

One side length of triangle ABC = 4 cm

Perimeter of triangle DEF = 12 + 6 + 9 = 27 cm

One side length of triangle DEF = 6 cm

Therefore:

x/27 = 4/6

Cross multiply

6x = (27)(4)

6x = 108

6x/6 = 108/6

x = 18

Thus, the perimeter of tr8angle DEF that is similar to triangle ABC is: 18 cm.

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You have a 5% probability of being incorrect with a 95% confidence interval. You have a 10% probability of being incorrect with a 90% confidence interval.

We can be 90% certain that the interval contains the population mean,, if the level of confidence is 90%. The associated z-scores are 1.645. We can be 95% certain that the interval contains the population mean, if the level of confidence is 95%.

In other words, the difference in effect estimates between the two subgroups is deemed to be statistically unimportant if the confidence intervals overlap.

You have a 5% probability of being incorrect with a 95% confidence interval. You have a 10% probability of being incorrect with a 90% confidence interval. A 95% confidence interval is narrower than a 99% confidence interval.

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Answer:

1 : 16

Step-by-step explanation:

6 hours : 4 days

6 hours : 96 hours

1 hour : 16 hours