1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lbvjy [14]
3 years ago
5

Lilly takes a train each day to work that averages 35 miles per hour. On her way home, her train ride follows the same path and

averages 45 miles per hour. If the total trip takes 2.5 hours, which equation can be used to find n, the number of miles Lilly’s home is from her work?
Distance
(mi)
Rate
(mi/hr)
Time
(hr)
Trip to Work
n
35 mph

Trip Home
n
45 mph

StartFraction n Over 35 EndFraction times StartFraction n Over 45 EndFraction = 2.5
StartFraction n Over 35 EndFraction + StartFraction n Over 45 EndFraction = 2.5
35 n + 45 n = 2.5
35 n times 45 n = 2.5
Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0

Answer: - n/35+n/45=2.5 or just 49.22

Step-by-step explanation:

use the formulas t total=t1+t2 and V=n/t

n=distance, V=speed, and t=time

35=n/t1, and t1=n/35

her train ride follows the same path at 45mph

45=n/t2, and t2=n/45, so then you get - n/35+n/45=2.5

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)  

- Cutiepatutie ☺❀❤

You might be interested in
I am making a slide show. I have a four minute 51 second video I have 19 photos that I want to edit evenly to fit how many secon
miss Akunina [59]
Would it be 15 seconds each?
7 0
2 years ago
What is 30 + 1/8 as a mixed number
Usimov [2.4K]
If you mean as a decimal, it's 30.125.
3 0
3 years ago
Convert a speed of 651 mi/hr to units of feet per minute. also show the unit analysis by dragging components into the unit-facto
ladessa [460]
We know that 60 minutes = 1 hour and 1 mile = 5280 feet. We just need to multiply and simplify:

651 miles/hour = 651 *5280/60 feet/minutes =  651*88 feet/minutes = 57288 feet/minutes
4 0
3 years ago
Read 2 more answers
Why does the formula for area of a triangle makes sense.
galben [10]

Answer: bh=4×5=20b, h, equals, 4, times, 5, equals, 20 square units, so the area of the triangle is \dfrac 12 bh = \dfrac 12 \times 4 \times 5 = 10

2

1

​

bh=

2

1

​

×4×5=10start fraction, 1, divided by, 2, end fraction, b, h, equals, start fraction, 1, divided by, 2, end fraction, times, 4, times, 5, equals, 10

Step-by-step explanation:

4 0
2 years ago
Whats x^2-2x-2<br><br><br><br><br><br><br><br><br><br><br> akjdcpiwhbfcnkluje
BaLLatris [955]

Answer:

Step-by-step explanation:

1 In general, given a{x}^{2}+bx+cax

​2

​​ +bx+c, the factored form is:

a(x-\frac{-b+\sqrt{{b}^{2}-4ac}}{2a})(x-\frac{-b-\sqrt{{b}^{2}-4ac}}{2a

​2a

​

​−b+√

​b

​2

​​ −4ac

​

​​

​​ )(x−

​2a

​

​−b−√

​b

​2

​​ −4ac

​

​​

​​ )

2 In this case, a=1a=1, b=-2b=−2 and c=-2c=−2.

(x-\frac{2+\sqrt{{(-2)}^{2}-4\times -2}}{2})(x-\frac{2-\sqrt{{(-2)}^{2}-4\times -2}}{2})(x−

​2

​

​2+√

​(−2)

​2

​​ −4×−2

​

​​

​​ )(x−

​2

​

​2−√

​(−2)

​2

​​ −4×−2

​

​​

​​ )

3 Simplify.

(x-\frac{2+2\sqrt{3}}{2})(x-\frac{2-2\sqrt{3}}{2})(x−

​2

​

​2+2√

​3

​

​​

​​ )(x−

​2

​

​2−2√

​3

​

​​

​​ )

4 Factor out the common term 22.

(x-\frac{2(1+\sqrt{3})}{2})(x-\frac{2-2\sqrt{3}}{2})(x−

​2

​

​2(1+√

​3

​

​​ )

​​ )(x−

​2

​

​2−2√

​3

​

​​

​​ )

5 Cancel 22.

(x-(1+\sqrt{3}))(x-\frac{2-2\sqrt{3}}{2})(x−(1+√

​3

​

​​ ))(x−

​2

​

​2−2√

​3

​

​​

​​ )

6 Simplify brackets.

(x-1-\sqrt{3})(x-\frac{2-2\sqrt{3}}{2})(x−1−√

​3

​

​​ )(x−

​2

​

​2−2√

​3

​

​​

​​ )

7 Factor out the common term 22.

(x-1-\sqrt{3})(x-\frac{2(1-\sqrt{3})}{2})(x−1−√

​3

​

​​ )(x−

​2

​

​2(1−√

​3

​

​​ )

​​ )

8 Cancel 22.

(x-1-\sqrt{3})(x-(1-\sqrt{3}))(x−1−√

​3

​

​​ )(x−(1−√

​3

​

​​ ))

9 Simplify brackets.

(x-1-\sqrt{3})(x-1+\sqrt{3})(x−1−√

​3

​

​​ )(x−1+√

​3

​

​​ )

7 0
3 years ago
Read 2 more answers
Other questions:
  • For the inverse variation equation p = StartFraction 8 Over V EndFraction, what is the value of V when p = one-half?
    6·1 answer
  • Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
    10·1 answer
  • A research company surveys 8,000 people. The company expects 6,000 people to respond favorably. If there is a percent error of 2
    9·1 answer
  • Factor the trinomial below.
    9·1 answer
  • Write the equation of the line that passes through the points (-4,-7) and (8,7). Put your answer in fully reduced point-slope fo
    7·1 answer
  • Suppose you throw a cube-shaped object and a spherical-shaped object of equal volume in the same volume of water. The ball sinks
    8·1 answer
  • I could use some more help
    8·1 answer
  • Show all ur steps for solving the following equation. <br> 6-12m=-30
    7·1 answer
  • Plot the image of point Q under the translation (x,y) → (2 -3,4+4).
    13·1 answer
  • Which metric unit is 1000 times bigger than a gram?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!