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mafiozo [28]
2 years ago
11

Josie walks 3/4 mile in 1/5 hour what is josie speed in miles per hour

Mathematics
1 answer:
Over [174]2 years ago
5 0

Answer: 3\dfrac34\text{ miles per day}

Step-by-step explanation:

We know that the formula to find speed is given by :-

\text{speed}=\dfrac{\text{distance}}{\text{time}}

Given: Distance = \dfrac34 mile

Time = \dfrac15 hour

Speed = \dfrac{\dfrac34}{\dfrac15}\text{ miles per hour}

=\dfrac{3}{4}\times5\text{ miles per hour}\\\\=\dfrac{15}{4}\text{ miles per hour}\\\\=3\dfrac34\text{ miles per day}

hence, speed =3\dfrac34\text{ miles per day}

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Solve the system of equations. (3x + 4y = 5) (2x - 3y = -8)
vovikov84 [41]

Answer:

the solution is (-1, 2)

Step-by-step explanation:

Let's solve the system

(3x + 4y = 5)

(2x - 3y = -8)

using the method of elimination by addition and subtraction.  Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:

  9x + 12y = 15

  8x - 12y  = -32

-----------------------

 17x       = - 17, so x = -1.  

Replacing x in the second equation by -1, we get:

2(-1) - 3y = -8, or

2 + 3y = 8,

or 3y = 6.  Thus, y = 2, and the solution is (-1, 2).

5 0
3 years ago
Given that an adult likes soccer, what is the probability the adult is aged 18–30? 8.1% 18.1% 24.5% 44.4%
dsp73

The probability that an adult likes soccer is aged between  18–30 will be 44.4%.

We have an adult who likes soccer.

We have to determine the probability the adult is aged 18–30.

<h3>What is Probability?</h3>

The formula to calculate the probability of occurrence of an event 'A' can be written as -  

P(A)  =  \frac{n(A)}{n(S)}

where -

n(A) = Number of outcomes favorable to event A.

n(S) = Total number of outcomes.

According to question, we have an adult likes soccer.

The answer to this question is based on the hypothesis that the adults between 18 - 30 are highly energetic. To be more precisely - the adults in the range 18 - 24 and 24 - 30 are highly energetic and full of stamina. Above the age 30, the number of adults who like soccer will start to decrease and will hit nearly zero between the age range of 55 - 65 as the adults in this age group found it very difficult to even walk.

Mathematically -

The probability of an event A = an adult likes soccer is aged between  18–30 will be the highest value among the ones mentioned in options.

Hence, the probability that an adult likes soccer is aged between  18–30 will be 44.4%.

To solve more questions on Probability, visit the link below -

brainly.com/question/24028840

#SPJ1

4 0
1 year ago
Simplify 9 log9 (7) is the answer 7
Aleks04 [339]
log_ab=c\ \ \ \Leftrightarrow\ \ \ a^c=b\\\\log_97=x\ \ \ \Leftrightarrow\ \ \ 9^x=7\\\\9^x=7\ \ \ (and \ \ \ x=log_97)\ \ \ \Rightarrow\ \ \ 9^{\big{log_97}}=7
3 0
3 years ago
Write an expression that is equal to 10 using only four 2s and any number of math symbols​
diamong [38]

(4 \times 2) + 2

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∠СXA = ∠BXA + ∠СXB = 30°20' + 40°35' = 70°55'
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