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
SpyIntel [72]
3 years ago
5

Jean drove 70 miles per hour for a total of 420 miles on a trip. She used the equation below to calculate the time, t, it would

take her to complete the trip.
What is the constant of proportionality in the equation?
A.
6
B.
420
C.
t
D.
70
Mathematics
2 answers:
Ket [755]3 years ago
8 0

Answer:

D because she is constantly going 70 MPH

Step-by-step explanation:

hope this helps

il63 [147K]3 years ago
8 0

Answer:

D. 70

Step-by-step explanation:

Distance = k × time

70 = k(1)

k = 70

Distance = 70 × time

time to complete the journey:

420 = 70 × time

time = 420 ÷ 70

time = 6 hours

You might be interested in
Multiply each equation by a constant that would help to eliminate the y terms.
Zinaida [17]

Answer:

Therefore the required resulting equation is

6x-15y=-63\\-15x+15y=90

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

Step-by-step explanation:

Given:

2x-5y=-21         ......................Equation ( 1 )

3x-3y=-18         ......................Equation ( 2 )

To Find:

Expression after multiplying to eliminate y term,

Solution:

So to eliminate 'y' term we need to multiply equation 1 by a constant 3 and equation 2 by a constant -5,  such that equations  becomes

3(2x-5y)=3\times -21\\\\6x-15y=-63 .....( 1 )

-5(3x-3y)=-5\times -18\\\\-15x+15y=90  .....( 2 )

so now by adding new equation one and two we can eliminate y term that means -15y and +15y will get cancel,

Therefore the required resulting equation is

6x-15y=-63\\-15x+15y=90

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

3 0
3 years ago
Read 2 more answers
An equation parallel and perpendicular to 4x+5y=19
mestny [16]

Answer:

An equation parallel to 4x + 5y = 19 would be y = -4/5x +12.

An equation perpendicular to 4x + 5y = 19 would be y = 5/4x + 10.

Step-by-step explanation:

The equation given represents a linear equation in Standard Form (Ax + By = C).  Lines that are parallel to each other go the same direction and don't touch, so their slopes must be the same.  However, lines that are perpendicular go in opposite directions and intersect, so their slopes must be the direct opposite of each other.  In order to find the slope, you must first convert from the Standard Form given to Slope Intercept Form (y = mx +b).  When you solve the given equation for 'y', you get: y = -4/5x + 19, where the slope = -4/5.  To make a parallel equation, simply keep the same slope and choose a different y-intercept ('b').  To make a perpendicular equation, take the direct opposide of your slope 5/4 (positive) and choose a different y-intercept.  

8 0
3 years ago
Please help. there is a picture below
OleMash [197]
Two triangles are similar if and only if all corresponding angles are equal (congruence), even if the corresponding sides are equal or not, therefore the answer is true because ΔJKL and ΔRST are similar and the statement above demands that "it must be", namely, this is a sufficient condition.
3 0
3 years ago
The area of a rectangle is greater than or equal to 115 square cm. The width of the rectangle is 5 cm and the Length of the rect
sattari [20]
Area= length*width
115= x * 5
115/5 = x
23 = x
So the length will be 23 cm.
4 0
3 years ago
What’s ur name person I don’t know?
fomenos

Answer:

Nicoly

Step-by-step explanation:

because my mother put my name like this

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following figures has an area that can be found using the formula A=(pi)r2
    7·1 answer
  • CHECK MY ANSWER PLEASE
    14·1 answer
  • SOMEONE PLEASE HELP ME ‍♂️‍♂️‍♂️
    14·1 answer
  • What is the answer to 10x[9÷(8+1)]
    12·2 answers
  • the first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample
    14·1 answer
  • Which case allows for more than one triangle with the given measures to be constructed?
    7·1 answer
  • The sum of three numbers is 9. The sum of the first two numbers is 6 more than twice the third number. The second number is the
    7·1 answer
  • Please show work. The way that you solve for surface area and vol confuse me.
    8·1 answer
  • Help with this please​
    9·1 answer
  • Plz help…………………………..
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!