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
Mazyrski [523]
3 years ago
12

Last Friday Jacob had $28. Over the

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0
11, because if you count the numbers between 28 and 39. It would be 11.☺️
You might be interested in
10. Choose all fractions equivalent to 36/40 <br><br><br><br> A) 3/4 B) 9/10 C) 9/40 D) 18/20
Talja [164]

Answer:

B, D

Step-by-step explanation:

36/40 simplified is 9/10

9/10 x 2  = 18/20

I hope this helps!

5 0
2 years ago
Read 2 more answers
What is the value of b in the equation 3b + 2(b − 1) = 8?
Ray Of Light [21]
<span>3b + 2(b − 1) = 8
3b + 2b - 2 = 8
5b = 10
b = 2

answer b = 2</span>
7 0
3 years ago
Read 2 more answers
X to the power of 2+ 2X plus 3X to the power of 2+ 4X subtract 2X to the power of 2+ X
eimsori [14]

Answer:

4x+12

Step-by-step explanation:

2x + 2 \times  { }^{2}  + 6x + 12 x ^{2}  - 4x +  - 2x ^{2}

8 0
3 years ago
The average of 1/2006 and 1/2007 is equal to half of their?
erma4kov [3.2K]
Add it. average= sum of 2 counts/2
5 0
3 years ago
I need help with Q9 c, I’ve done a and b if it helps, b=325 but I am just stuck on question 9C, I know the answer is 500N (as it
777dan777 [17]

Step-by-step explanation:

I know you've already done parts a and b, but I'll show the work for that before I do c.

Draw two free body diagrams, one for the car and one for the trailer.  The car pulls the trailer forward with a tension force T, so the trailer pulls backward on the car with an equal and opposite force T.

The car also has a 1200 N forward force from the engine, and a 200 N backwards force from resistance.

The trailer has a backwards resistance force of 100 N.

Sum of forces on the car:

∑F = ma

1200 − 200 − T = 900a

1000 − T = 900a

Sum of forces on the trailer:

∑F = ma

T − 100 = 300a

To solve the system of equations, first add the equations together.

1000 − 100 = 1200a

900 = 1200a

a = 0.75 m/s²

Plug back into either equation to find the tension force:

T = 325 N

Now for part c, draw new free body diagrams for the car and trailer.  This time, the car is pushing back on the trailer to slow it down.  So the trailer is pushing forward on the car with an equal and opposite force.  The magnitude of that tension force is given to be 100 N.

The car also has a backwards 200 N force from resistance, and a backwards brake force F.

The trailer has a backwards 100 N force from resistance.

Sum of forces on the car:

∑F = ma

100 − 200 − F = 900a

-100 − F = 900a

Sum of forces on the trailer:

∑F = ma

-100 − 100 = 300a

-200 = 300a

a = -⅔

Plugging into the first equation:

-100 − F = 900 (-⅔)

-100 − F = -600

F = 500 N

4 0
2 years ago
Other questions:
  • Which of the following is the graph of y = ex + 1?
    15·2 answers
  • Can someone PLEASE help me solve these last 2 problems so I can be done with this math class....really stumped on these 2....
    15·1 answer
  • What do you call a fraction in which the only common factor of the numerator and denominator is 1? A) complex form B) compound f
    12·1 answer
  • the mass of the sun is about 2 x 10^27 metric tons 0r 2 x 10^30 kilograms. how many kilograms are in one metric ton
    9·2 answers
  • Which of these number sentences is NOT true?
    14·1 answer
  • I need help with this, please answer
    11·1 answer
  • Factor 21x^2 - 37x + 12
    9·1 answer
  • Which missing numbers make the following expressions equivalent?
    7·2 answers
  • 10 POINTS PLEASE HURRY
    6·2 answers
  • Find the value of f (3) <br><br> y =f(x)<br><br><br><br> Please help
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!