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
andrew-mc [135]
3 years ago
6

Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, and solve to find t

he number.
Mathematics
1 answer:
nignag [31]3 years ago
3 0
N = the number

0.5n - 9 = 4n + 5
(0.5n - 0.5n) - 9 = (4n - 0.5n) + 5
-9 = 3.5n + 5
(-9 - 5) = 3.5n + (5 - 5)
-14 = 3.5n
-14/3.5 = 3.5n/3.5
-4 = n

The number is -4.
You might be interested in
Two angles are supplementary. One angle has a measure that is five less than four times the other. What is the measure of the la
sattari [20]

Answer:

C

Step-by-step explanation:

4x-5+x=180. Add 5 to both sides

5x=185. Divide by 6

X=37

180-37=143

143

4 0
3 years ago
Tierra bought 4 3/8 yards blue ribbon and 2 1/8 yards yellow ribbon for a craft project. How much more blue ribbon than than yel
PolarNik [594]
She bought 2 1/4 more blue ribbon.

4 3/8 - 2 1/8 = 2.25
2.25= 9/4
9/4= 2 1/4

-Katie ;)
4 0
3 years ago
Read 2 more answers
4 - 2y + 8 = -6 solve for y
cluponka [151]

Answer:

Use the app photomath

Step-by-step explanation:

7 0
3 years ago
The following uses a 4-step proof, starting with the given statement. Complete the following proof
AlladinOne [14]

1) \overline{JK} \perp \overline{MN}

2) \angle JKM is a right angle (perpendicular lines form right angles)

3) \triangle JKM is a right triangle (definition of a right triangle)

4) \angle 1 and \angle 2 are complementary (the acute angles of a right triangle are complementary)

8 0
2 years ago
After traveling exactly half of its journey from station A to station B, a train was held up for 10 minutes. In order to arrive
Alex17521 [72]
Let's define variables:
 s = original speed
 s + 12 = faster speed
 The time for the half of the route is:
 60 / s
 The time for the second half of the route is:
 60 / (s + 12)
 The equation for the time of the trip is:
 60 / s + 60 / (s + 12) + 1/6 = 120 / s
 Where,
 1/6: held up for 10 minutes (in hours).
 Rewriting the equation we have:
 6s (60) + s (s + 12) = 60 * 6 (s + 12)
 360s + s ^ 2 + 12s = 360s + 4320
 s ^ 2 + 12s = 4320
 s ^ 2 + 12s - 4320 = 0
 We factor the equation:
 (s + 72) (s-60) = 0
 We take the positive root so that the problem makes physical sense.
 s = 60 Km / h
 Answer:
 
The original speed of the train before it was held up is:
 
s = 60 Km / h
8 0
3 years ago
Other questions:
  • Bart practice his trumpet 1 1/4 hours each day how many hours will be practice in 6 days?
    9·2 answers
  • I need help on some problems​
    14·1 answer
  • 5 thousands 2 hundreds 4 ones + 3 thousands 7 hundreds 5 ones in standard form
    8·1 answer
  • EXTRA POINTS! What is the area of the composite figure? Assume angles that appear perpendicular are perpendicular and lines appe
    6·1 answer
  • Find the range of the data set: 7, 12, 15, 4, 23, 15, 25, 9
    9·1 answer
  • What do you think 6x9 is? ​
    15·2 answers
  • Please help!! look at the picture as well!!
    11·1 answer
  • Please PLEASE help me!!!<br> Find AC
    15·1 answer
  • Angle ABC is a right angle. Write and solve an equation to determine the value of the variable, x. Then determine the measures o
    14·2 answers
  • Can someone help me find the value of x for the triangle?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!