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
lys-0071 [83]
2 years ago
14

Joe began to increase the speed of his car at 2:00 P.M. Since that time,the speed of Joes car has been steadily increasing by 1

1/2 miles per hour for each half minute that has passed. If the car is now traveling 65 1/2 miles per hour, for how many minutes has the car been exceeding the speed limit for 55 miles per hour?
A. 3 1/3 min
B. 3 1/2 min
C. 4 1/2 min
D. 5 min
E. 7 min
Mathematics
1 answer:
Olegator [25]2 years ago
8 0

Answer:

7 mins

Step-by-step explanation:

Current speed of Joes Car = 65.5 mph

We have to find the time interval for which the car exceeded the speed limit of 55 mph.

While, we are given that the speed of the car was constantly increasing, hence the speed over all increased from the limit of 55 mph = 65.50-55.00 = 10.50 mph

We are also given that Joes car was increasing speed at a constant rate of 1.50 mph for every passing minute. Hence

1.50 mph is increased in 1 minute

1 mph will be increase in \frac{1}{1.5} minutes

Hence

10.50 mph will be increased in \frac{1}{1.5} \times 10.50 minutes

= \frac{10.5}{1.5}

=7

Hence joes car was exceeding the limit of 55 mph for 7 minutes.

You might be interested in
Can someone help me do this
djyliett [7]

Answer:

See below

Step-by-step explanation:

It's hard to see your photo but if that say m∠T than your answer would be

m∠ L.

The drawings are saying the the triangles are congruent which means all the interior angles of one triangle are congruent to the angles of the second triangle.    m∠M = m∠J,   m∠K = m∠E and m∠L = m∠T

Since you have two of the angles, you can also determine what m∠L and m∠T is equal to.  The sum on all interior angles must be 180 degrees.

180 - 86 - 32 = 62

7 0
2 years ago
Read 2 more answers
ive been stuck on this question for a while :( i was absent for the first half of this lesson so i dont completely know what im
Deffense [45]

Answer:

(0, 9 ) and (- 4, 1 )

Step-by-step explanation:

To determine which ordered pairs lie on the graph substitute the x- coordinate of the point into the right side of the equation and compare the value obtained with the y- coordinate

(- 20, - 49 )

2x + 9 = (2 × - 20) + 9 = - 40 + 9 = - 31 ≠ - 49

(1, 10 )

2x + 9 = (2 × 1) + 9 = 2 + 9 = 11 ≠ 10

(0, 9 )

2x + 9 = (2 × 0) + 9 = 0 + 9 = 9 ← point lies on graph

(- 4, 1 )

2x + 9 = (2 × - 4) + 9 = - 8 + 9 = 1 ← point lies on graph

(- 3, 40 )

2x + 9 = ( 2 × - 3) + 9 = - 6 + 9 = 3 ≠ 40

5 0
3 years ago
What would the points (400,10) represent on the graph​
olga nikolaevna [1]

Answer:

No solution

Step-by-step explanation:

You didn't include enough information

4 0
3 years ago
Read 2 more answers
Mixed numbers between 6 and 8 with an interval of 1/4 between each pair of mixed numbers
Dominik [7]
Those numbers would be,
6 \frac{1}{4} 6 \frac{2}{4} 6 \frac{3}{4}77 \frac{1}{4}  7\frac{2}{4}  7\frac{3}{4}
Hope this helps!=)
7 0
3 years ago
A science teacher fills a spherical bubble with hydrogen gas. The bubble has a diameter of 8 centimeters.
Vadim26 [7]

A science teacher fills a spherical bubble with hydrogen gas. The bubble has

Hi

8 0
2 years ago
Other questions:
  • Find JL if JK = 17 - x, KL = 2x - 7, and K is the midpoint of JL
    12·1 answer
  • What is the perimeter of a square with a side measurement of 6 in
    10·1 answer
  • Use the function F(3)<br> F(x) =(1/5)^x<br> A.)1/15<br> B.)1/125<br> C.)3/5<br> D.)3/125
    9·1 answer
  • (HELP NEEDED) (PAST DUE) (STUCK) Please write a number line for the number 3
    7·2 answers
  • Please help!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • Can u solve this??‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎<br> ‎‎‎‎‎‎‎‎vv
    15·1 answer
  • A preimage is the the original figure in a transformation.<br> A) True B) False
    10·2 answers
  • Four and sixty eight thousandths in decimal form
    15·2 answers
  • Please Help Me With This Math. It's 4th Grade Math!!!
    15·2 answers
  • What do letters have to do in bisectors. ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!