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horrorfan [7]
3 years ago
9

Stefan sells Jin a bicycle for ​$138 and a helmet for ​$16. The total cost for Jin is 40 ​% of what Stefan spent originally to b

uy the bike and helmet. How much did Stefan spend​ originally?
Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

The original cost is

$385

Step-by-step explanation:

Step one:

given data'

cost of bicycle= $138

helmet = $16

Total cost = 138+16= $154

Step two:

let the original cost be x

we are told that 40% of x= 154

hence

40/100*x= 154

0.4x=154

divide both sides by 0.4

x= 154/0.4

x=$385

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Airida [17]

Answer:

A) 0.303

The probability that a randomly selected student from the class has brown eyes , given they are male

P(\frac{B}{M} ) = 0.3030

Step-by-step explanation:

<u>Explanation</u>:-

Given data

                      Brown           Blue           Hazel           Green

Females           13                  4                  6                   9          

Males                10                  2                 9                   12

<em>Let 'B' be the event of brown eyes </em>

<em>Total number of males n(M) = 33</em>

Let B/M be the event of randomly selected student from the class has brown eyes given they are male

<em>The probability that a randomly selected student from the class has brown eyes , given they are male</em>

<em></em>P(\frac{B}{M} ) = \frac{n(B)}{n(M)}<em></em>

<em>From table the brown eyes from males = 10</em>

P(\frac{B}{M} ) = \frac{10}{33}

P(\frac{B}{M} ) = 0.3030

<u>Final answer</u>:-

The probability that a randomly selected student from the class has brown eyes , given they are male

P(\frac{B}{M} ) = 0.3030

8 0
3 years ago
A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take
valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

H=-16t^2+vt+s

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

v=0 ---> because the object is dropped

s=45\ ft

substitute

H=-16t^2+45

Remember that

When the chestnut hit the ground the value of H is equal to zero

so

For H=0

-16t^2+45=0

solve for t

16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec

therefore

The solution is t=1.7 sec

7 0
3 years ago
The asymptote function f(x)=3^x+4 is y=
swat32

The asymptote of the function f(x)=3^x is y = 0.

The asymptote of the function f(x)=3^x+4 is y = 0+4=4

Answer: y = 4

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Aliun [14]

Answer:

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Step-by-step explanation:

Y-intercept: The y-intercept is equivalent to the point where x= 0. 'x' is the input variable in an equation, therefore the y-intercept is where the input, or x, is equal to 0.

f(x) <0: Notice the 'lesser than' sign. This means that the value of f(x), or 'y', is less than 0. This means that this area consists of intervals of the domain below the x-axis.

X-intercept: The x-intercept is the location of the graph where y= 0, or the output is equal to 0.

f(x) >0: In this, there is a 'greater than' sign. This means that f(x), or 'y', is greater than 0. Therefore, this consists of intervals of the domain above the x-axis.

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Sindrei [870]

Answer:

erm

Step-by-step explanation:

25

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3 years ago
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