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
astraxan [27]
2 years ago
15

Mary is traveling cross country on a road trip. So far, Mary has traveled 200 miles in her car and 200 miles by train. The car t

raveled at a
rate that was 30 miles per hour slower than the train.
Mary modeled the total time for her trip with the following expression.
200 + 20030
What does x - 30 represent in this situation?
Mathematics
2 answers:
Scilla [17]2 years ago
7 0

Answer:

x-30 is the equation used to determine the car's speed in mph.

Step-by-step explanation:

VikaD [51]2 years ago
5 0

Answer:

i dont know i think it is 11?!? srry if im wrong

Step-by-step explanation:

You might be interested in
For what value of x must ABCD be a parallelogram ?
Pavlova-9 [17]

Answer:

x = 4

Step-by-step explanation:

as it is parallelogram opposite sides are equal

so14x -7= 10x-9

14x-7+9=10x

14x -16 = 10x

14x -10x = 16

4x =16

x = 16/4

x = 4

also u can put x = 4 in both expressions and u will get answer of both 49

7 0
3 years ago
The x-intercepts of a parabola are 5 and -7. What is the equation of the axis of symmetry?
zloy xaker [14]
X=-1
The axis of symmetry will be directly in the middle of the intercepts.
4 0
2 years ago
Suppose y varies directly as x, and y=14 when x=4. What is the value of y when x=9
Katena32 [7]

Given :-

  • y varies directly as x, and y=14 when x=4.

To Find :-

  • the value of y when x=9 .

Solution :-

<u>A</u><u>c</u><u>c</u><u>o</u><u>r</u><u>d</u><u>i</u><u>n</u><u>g</u><u> </u><u>t</u><u>o</u><u> </u><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>,</u>

  • y = kx ( k is constant )

<u>When</u><u> </u><u>y</u><u> </u><u>=</u><u> </u><u>1</u><u>4</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>4</u><u> </u><u>,</u>

  • 14 = k(4)
  • k = 14/4
  • k = 7/2

<u>W</u><u>h</u><u>e</u><u>n</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>9</u><u> </u><u>,</u>

  • y = 7/2*9
  • y = 63/2
  • y = 31.5
8 0
2 years ago
1.5(x +4) - 3 = 4.5 (x - 2)
Pavel [41]

Answer:

Step-by-step explanation:

x-4

7 0
2 years ago
Read 2 more answers
What is the value of log 27 9 ?<br> - 3/2<br> -2/3<br> 2/3<br> 3/2
iren2701 [21]

Answer:

3/2

this is the answer

8 0
3 years ago
Other questions:
  • I need to translate the following phase to an algebraic expression. What variable represents 10 more than a number. I think the
    15·1 answer
  • A box contains 5 plain pencils and 7 pens. A second box contains 3 color pencils and 3 crayons. One item from each box is chosen
    7·1 answer
  • (QUICK QUESTION) If you have 18 credits In the 12th grade Is it possible to get 23 by June 2019?? In one semester
    13·2 answers
  • Problem Safety standards require a pool to add 3 chlorine tablets to every 2,000 gallons of water. Today, the lifeguards at Park
    11·2 answers
  • If the ordinate equals the abscissa and x ∈ {-3, 0, 12}, which of the following sets of ordered pairs satisfies the given condit
    10·2 answers
  • The price of a stock decreased by 60 cents one week, decreased 10 cents the next week, and decreased another 20 cents the follow
    9·1 answer
  • Find the exact values of the remaining five trigonometric functions of o satisfying the given conditions.
    5·1 answer
  • Round 6.713 to the nearest whole number.<br> HURRY<br> PLS-
    15·2 answers
  • (x^2+3) - [3x+(8-x^2) ]
    12·1 answer
  • You need school supplies. You go to the store and see that there are 6 different backpacks, 8 notebooks, 3 packets of pens, and
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!