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olasank [31]
3 years ago
13

Peter and his neighbor, Juan walk 2 miles to school each day yesterday peter walked to school in 27 minutes Juan walked the firs

t mile to school in 11 minutes if they leave at the same time today and maintain their rates from yesterday what can you say about their arrival times?
Mathematics
1 answer:
a_sh-v [17]3 years ago
8 0

Total distance from their home to school is 2 miles.

Peter covered this distance in 27 minutes yesterday. Since the rate of walking is the same today, Peter will arrive in school in 27 minutes today.

Juan covered 1 mile in 11 minutes yesterday. This means she will cover 2 miles in 22 minutes. Since the rate(speed) of walking of Jaun is also same as that of yesterday, Juan will reach the school in 22 minutes.

Thus, we can conclude that if Peter and Juan leave at the same time, Juan will reach the school 5 minutes earlier than Peter.

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This is function notation and I have no idea how to do it. I need answers.
pashok25 [27]

Answer:

So you are given the function, f(x) = 3x - 4. You will plug in the value given and solve and write the answer down in the box.

f(x) = 3x - 4 ---> f(5), f(2), f(1), f(10), and f(-1) value given

f(5) = <u>3(5)</u> - 4

f(5) = <u>15 - 4</u>

f(5) = 11

f(2) = <u>3(2)</u> - 4

f(2) = <u>6 - 4</u>

f(2) = 2

f(1) = <u>3(1)</u> - 4

f(1) = <u>3 - 4</u>

f(1) = -1

f(10) = <u>3(10)</u> - 4

f(10) = <u>30 - 4</u>

f(10) = 26

f(-1) = <u>3(-1)</u> - 4

f(-1) = <u>-3 - 4</u>

f(-1) = -7

*Answers are bolded.*

Hope this helps, thank you :) !!

6 0
3 years ago
Find the value of the test statistic z using z=^p−p√pq/n.
Anna007 [38]

Answer:

Option C - 4.71

Step-by-step explanation:

We are given the Test statistic for proportion as;

z = (^p − p)/√pq/n

From the question;

^p = 0.15

p = 0.1

q = 1 - 0.1 = 0.9

n = 800

z = (0.15 - 0.1)/√(0.1 × 0.9/800)

z = 0.05/√(0.09/800)

z = 4.71

7 0
3 years ago
I'm not sure what this means, please help me I'll give you 10 points ;)
Karo-lina-s [1.5K]

<u>Answer:</u>

So all the possible solutions are:

  • \bold{523,~400,~379~and,~378.6}

<u />

<u>Solution Steps:</u>

<em>First you need to solve the real inequality to understand how to find the rest of the possible equations. </em>

<u>Add 78 to both sides:</u>

  • <u />78+78= Cancels Out
  • 300+78=378

<em>So now we know the real answer, but it ask for all possible answers. </em>

(Means anything larger than 300 when you plug it into x - 78 > 300.)

<u>Numbers that are greater than 378:</u>

  1.)  377-78=299 > 300  (False)

  2.)  523-78=445>300  (True)

  3.)  0-78=-78>300  (False)

  4.)  -62-78=-140>300  (False)

  5.)  400-78=322>300  (True)

  6.)  379-78=301>300  (True)

  7.)  222-78=144>300  (False)

  8.)  378.6-78=300.6>300 (True)

______________________________

 \bold{Hope~this~helps!}\\\bold{If~you~need~help~with~anything~else,~feel~free~to~ask!}\\\\\bold{~~~~~-TotallyNotTrillex}

5 0
3 years ago
What is the simplified form of <br><br> (X/3-y/4)/(x/4+y/3) ? (6 points)
Fofino [41]

Option 2: \frac{4x-3y}{3x+4y} is the right answer

Step-by-step explanation:

Given fraction is:

\frac{\frac{x}{3}-\frac{y}{4}}{\frac{x}{4}+\frac{y}{3}}

To solve the fraction, Taking LCM in denominator and numerator

=\frac{\frac{4x-3y}{12} }{\frac{3x+4y}{12}}

When the numerator and denominator both have fractions, the simplified form is obtained be multiplying the numerator with reciprocal of the denominator. So,

= \frac{4x-3y}{12} * \frac{12}{3x+4y}\\=\frac{4x-3y}{3x+4y}

Hence,

Option 2: \frac{4x-3y}{3x+4y} is the right answer

Keywords: fractions, simplification

Learn more about fractions at:

  • brainly.com/question/4401748
  • brainly.com/question/4459688

#LearnwithBrainly

4 0
3 years ago
A set of buttons sells for $2.75 and costs $0.55 to make. Twenty percent of the profit (the difference between the purchase pric
Rufina [12.5K]

Answer: b

Step-by-step explanation: I am 95% sure

6 0
3 years ago
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