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Nat2105 [25]
3 years ago
8

A line segment has endpoints at (-7, 2) and (8,8). What is the x-coordinate of the point on the line segment that is the distanc

e from (-7, 2) to (8,8)?​
Mathematics
2 answers:
slava [35]3 years ago
8 0

Answer:

Sorry dud it been long time I've not answered 0ne

sveticcg [70]3 years ago
6 0

Answer:

Heyy

Step-by-step explanation:

Did ya get the answer ???

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Which statement about human activity and the environment is NOT true?
RSB [31]

Humans knowingly create environmental disasters.

Step-by-step explanation:

7 0
2 years ago
A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad p
Alexeev081 [22]

The girl walked a distance of \boxed{{\mathbf{5 miles}}}  in her way.

Further explanation:

The time can be calculated as,

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

Given:

It is given that a girl stands 20 miles away from the school at 6:50{\text{ am}}  and she started walking at the rate of 3{\text{ mi/hr}}  and then after some time her dad pick up and he drives at the rate of 30{\text{ mi/hr}} . They reach the school at 9:00{\text{ am}} .

Step by step explanation:

Step 1:

Consider x  as the distance she walked in her way.

The speed of the girl when she walked is 3{\text{ mi/hr}} .

Now use the formula of time to obtain the walk time.

\begin{gathered}{\text{ walktime}}=\frac{{{\text{distance walked}}}}{{{\text{walking speed}}}}\hfill\\{\text{ walktime}}=\frac{x}{3}\hfill\\\end{gathered}

Since the total distance is 20{\text{ miles}} .

Then consider 20-x  as the distance driven by the car.

The driving speed is 30{\text{ mi/hr}} .

Now use the formula of time to obtain the drive time.

\begin{gathered}{\text{drive time}}=\frac{{{\text{distance travelled by car }}}}{{{\text{ speed of car}}}}\hfill\\{\text{drive time}}=\frac{{20-x}}{{30}} \hfill\\\end{gathered}

Step 2:

Now we calculate the total time took by girl to reach the school.

  9:00-6:50={\text{2 hrs 10 min}}

Now convert the timing into hours as,

\begin{aligned}2{\text{ hours 10 minutes}}&=2+\frac{{10}}{{60}}\\&=2\frac{1}{6}\\&=\frac{{13}}{6}{\text{ hrs}}\\\end{aligned}

Step 3:

Total time is the sum of drive time and walk time.

The total time can be expressed as,

\frac{x}{3}+\frac{{20-x}}{{30}}=\frac{{13}}{6}

Now solve the above equation by cross multiply method.

\begin{aligned}\frac{x}{3}+\frac{{20-x}}{{30}}&=\frac{{13}}{6}\hfill\\\frac{{10x+20-x}}{{30}}&=\frac{{13}}{6}\hfill\\\frac{{9x+20}}{{30}}&=\frac{{13}}{6}\hfill\\6\left({9x+20}\right)&=13\left({30}\right)\hfill\\\end{aligned}

Now simplify the further equation.

\begin{aligned}6\left({9x+20}\right)&=13\left({30}\right)\hfill\\54x+120&=390\hfill\\54x&=390-120\hfill\\54x&=270\hfill\\\end{aligned}

Simplify the further equation.

\begin{aligned}54x&=270\hfill\\x&=\frac{{270}}{{54}}\hfill\\x&=\frac{{45}}{9}\hfill\\x&=5\hfill\\\end{gathered}

Therefore, the girl walked 5 miles.

Learn more:  

  • Learn more about the distance between the points <u>brainly.com/question/6278187 </u>
  • Learn more about the equivalent fraction <u>brainly.com/question/952259 </u>
  • Learn more about midpoint of the segment <u>brainly.com/question/3269852 </u>

Answer details:

Grade: High school

Subject: Mathematics

Chapter: Speed, distance and time

Keywords: girl, distance, drive, walk, drive time, dad, speed, travelled, formula, cross multiply, fraction, number, multiply, addition, subtraction, equation, school

8 0
3 years ago
Read 2 more answers
A regression equation is determined that describes the relationship between average January temperature (degrees Fahrenheit) and
Musya8 [376]

Answer:

Decreases by 2 degrees

Step-by-step explanation:

The expression that describes temperature as a function of latitude is:

T=110-2(Latitude)

This equation represents a linear relationship between latitude and temperature in a way that an increase in latitude causes a decrease in temperature. The magnitude of this decrease is quantified by the slope of the linear equation, which is -2. Therefore, the estimated temperature decreases by 2 degrees when latitude is increased by one.

8 0
2 years ago
A hot air balloon in flight begins to ascend at a steady rate of 120 feet per minute. After 1.5 minutes, the balloon is at an al
azamat

Answer:

The balloon will not reach 2,500 feet after 4 minutes.

Step-by-step explanation:

The equation of the line in the point-slope form is

y-y_1=m(x-x_1)

A hot air balloon in flight begins to ascend at a steady rate of 120 feet per minute, then the slope is

m=120

After x_1=1.5 minutes, the balloon is at an altitude of y_1=2,150 feet. This means, the line passes through the point (1.5, 2,150).

Substitute the slope and point coordinates into the equation:

y-2,150=120(x-1.5)

We know that after 3 minutes, the balloon is at an altitude of 2,330 feet. Check this:

2,330-2,150=180\\ \\120(3-1.5)=120\cdot 1.5=180\\ \\2,330-2,150=120(3-1.5)

Now, find the height after 4 minutes:

y-2,150=120(4-1.5)\\ \\y=120\cdot 2.5+2,150=300+2,150=2,450

Thus, the balloon will reach only 2,450 feet after 4 minutes.

4 0
3 years ago
Ryan has 3.25 pounds of hamburger. How many 0.25 pound hamburgers can he make?
Marina86 [1]
Ryan has 3.25 of hamburger. How many 0.25 pound of hamburgers can he make? The answer: 13
7 0
3 years ago
Read 2 more answers
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