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2 years ago

Help please? Giving brainliest and points! Please explain!

2 answers:

8 0

A, because $1.68 per mile is your rate, and since you don't know how many miles you will be going, you represent it with x. The initial fee of $2.15 is added to $1.68x so you can get your total cost. If you went 8 miles, your equation would be $1.68(8)+$2.15, however since there isnt a specific number of miles, we will use x.

IRINA_888 [86]2 years ago

3 0

The initial fee is the base, so that will not change.

Without knowing how many miles you're going you need x to substitute them, so the equation would be (using slope intercept form)

y= 1.68x + 2.15

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In Jamie's class, 1/5 of the students are boys. What percent of the students in Jamie’s class are boys?

Cloud [144]

Answer:

The percentage of boys students in Jamie's class is 20 %

Step-by-step explanation:

Given as :

The total number of boys in the Jamie's class = $\frac{1}{5}$ of the total student

Let the total number of student's in the class = x

So, The number of boys = $\frac{1}{5}$ × x

I.e The number of boys = $\dfrac{x}{5}$

So , in percentage the number of boys students in class = $\dfrac{\textrm Total number of boy student}{\textrm Total number of students}$ × 100

OR, % boys students = $\dfrac{\dfrac{x}{5}}{x}$ × 100

or, % boys students = $\frac{100}{5}$

∴ % boys students = 20

Hence The percentage of boys students in Jamie's class is 20 % . Answer

7 0

2 years ago

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A 6 pack of soda costs $3.60. What is the unit rate for one bottle of soda?

iVinArrow [24]

Answer:$0.60

Step-by-step explanation:

Divide younr cost by the amount of soda.

4 0

2 years ago

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a pyramid whose altitude is 5ft weighs 800lbs. at what distance from its vertex must it be cut by a plane parallel to its base s

slavikrds [6]

A structure which has a square base and four triangular sides meeting at a point is called pyramid.

At distance of 3.97 feet from its vertex , pyramid is cut by plane so that the two solids of equal weight will be formed.

It is assumed that weight of pyramid is proportional to its volume.

So, $w = k V$ , where V is volume of original pyramid and v is volume of small pyramid and k is constant.

Let us consider that at h distance, pyramid is cut from its vertex. So a small pyramid is also formed.

Assume that base area of original pyramid is A and base of small pyramid is a.

Volume of original pyramid is, $V= \frac{1}{3} *A* 5$

So, weight of original pyramid, $W = k *(\frac{1}{3} *A* 5) = 800$

Volume of small pyramid is, $v = \frac{1}{3}* a* h$

So, weight of small pyramid, $w = k*(\frac{1}{3}* a* h)=400$

Since, base and height of small pyramid and original pyramid are in proportion.

So, $\frac{a}{A} = (\frac{h}{5}) ^{2}$

$a = (\frac{h}{5} )^{2}A$

Substituting value of a in equation $k*(\frac{1}{3}* a* h)=400$

So, $k*(\frac{1}{3}* \frac{h^{2} }{25}A * h)=400$

$(k*\frac{1}{3}* A*5)*\frac{1}{5} *\frac{h^{2} }{25} * h)=400$

Since, $(k *\frac{1}{3} *A* 5) = 800$ , substitute in above equation.

So, $800*\frac{h^{3} }{125}=400\\\\h^{3}=\frac{125}{2}\\\\h=\sqrt[\frac{1}{3} ]{62.5}\\\\h=3.97 feet$

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2 years ago

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Solve for each question 5 | b + 1 | =5

uysha [10]

B=-2 or b=0 is the awnser

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Relation sheep between the value of 6s in 6600

forsale [732]

The first 6 is equal to 6,000. The second 6 is equal to 600. 6,000 is 10 times greater than 600.

Hope this Helps!

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3 years ago

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