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2 years ago

Can someone help me with this problem

Mathematics

1 answer:

Liula [17]2 years ago

7 0

Why did the narrator use the phrase “fit together like puzzlec pieces” to describe how the cells of a developing human embryo form a human face

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GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 7 pencils for $1.68 p pencils fo

Evgesh-ka [11]

The proportion that could be used to solve for the variable is:

$\frac{7}{1.68}=\frac{p}{2.88}$ ; p = 12 ⇒ b

Step-by-step explanation:

Direct proportion means that two (or more) quantities increase or decrease in the same ratio

y = k x is the equation of direct proportion, where k is the constant of proportionality
$\frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k$ is the another way to write a proportion

The number of pencils and the cost of them is increased together or decreased together

∴ The number of the pencils and their costs are in direct proportion

- By using the 2nd rule above

∵ The cost of the 7 pencils is $1.68

∵ The cost of p pencils is $2.88

∴ $\frac{7}{1.68}=\frac{p}{2.88}$

The proportion that could be used to solve for the variable is: $\frac{7}{1.68}=\frac{p}{2.88}$

∵ $\frac{7}{1.68}=\frac{p}{2.88}$

- By using cross multiplication

∴ p × 1.68 = 7 × 2.88

∴ 1.68 p = 20.16

- Divide both sides by 1.68

∴ p = 12

The value of variable p is 12

Learn more:

You can learn more about the proportion in brainly.com/question/10708697

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8 0

3 years ago

Mia borrowed 5,000 from her grandparents to pay college expenses. She pays them 125 each month,and simple interest at an annual

ivanzaharov [21]

It will take her 40 months

8 0

3 years ago

Factories fully. X to the power of three - x

spayn [35]

The expression x³ - x when factored out is x(x -1)(x + 1)

<h3>How to determine the factored expression?</h3>

From the question, we have the following expression that can be used in our computation:

X to the power of three - x

Express the expression properly

So, we have the following representation

x³ - x

The terms of the above expression are:

x³ and x

And the factor of x³ and x

Factor = x

So, we divide x³ and x by x

The results of these divisions are

x³/x = x²

x/x = 1

So, we have the following results

(x³ - x) = x(x² -1)

Express x² -1 as a difference of two squares

So, we have

(x³ - x) = x(x -1)(x + 1)

Hence, the factored expression is x(x -1)(x + 1)

Read more about expressions at

brainly.com/question/18631189

#SPJ1

7 0

11 months ago

The pool is located at (0,0) to get to your house from the pool you walk three blocks west and one block north what ordered pair

ira [324]

Answer:

(-3, 1) quadrant II (2)

Step-by-step explanation:

An image of the coordinate plane is show. The quadrants start at the top right and move around in the counter-clockwise direction. The x-axis is horizontal (side to side) and y-axis is vertical (up and down). Starting at the origin of the coordinate plane (0, 0) and going three blocks west (left) would put you at -3 on the x-axis. If you then proceed to go north (up) +1, you would now be at point (-3, 1) which is a (-x, +y) or in quadrant II.