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
alexira [117]
3 years ago
5

Solve -np-80<60 for n. Show your work. Solve 2a-5d=30 for d. Show your work.

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0

-np-80 < 60\qquad\text{change the signs}\\\\np+80

------------------------------------------------------

2a-5d=30\qquad\text{subtract 2a from both sides}\\\\-5d=-2a+30\qquad\text{change the signs}\\\\5d=2a-30\qquad\text{divide both sides by 5}\\\\d=0.4a-6

You might be interested in
Find the valu of x 8: 10 =x:50​
elena-14-01-66 [18.8K]

Answer:

40

Step-by-step explanation:

50 / 10 = 5

8 * 5 = 40

Both should be divisible by same amount and that is 5.

7 0
2 years ago
Read 2 more answers
The average (arithmetic mean) of 7 numbers in a certain list is 12. The average of the 4 smallest numbers in this list is 8, whi
Morgarella [4.7K]

Answer:

Step-by-step explanation:

Let the 4 greatest numbers be, A, B, C D

(A + B + C + D)/4 = 8

Total sum = 4 × 8

= 32

Let the 4 lowest numbers be, D, E F G,

(D + E + F + G)/4 = 20

Total number = 4 × 20

= 80

Hence, the difference between the sums of the 3 greatest number and the 3 smallest numbers:

A, B, C and E, F, G

= D + (E + F + G) - (A + B + C) - D

= (E + F + G) - (A + B + C)

= 80 - 32

= 48.

4 0
4 years ago
What is 175.42 rounded to the nearest tenth?
weqwewe [10]
175.4 because 4 is the tenth place and 2 would round down
4 0
3 years ago
Which of the following choices is an example of a unit rate?
Drupady [299]

Answer:A

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Is the answer to 1/2 divided by 6 greater than 1?
Citrus2011 [14]

Answer:

no

Step-by-step explanation:

1/2 divided by 6 = 1/12

hope this helps

8 0
3 years ago
Read 2 more answers
Other questions:
  • Convert the following:
    12·1 answer
  • Which is the best answer to this question
    11·1 answer
  • 6. As part of their employee benefits, all workers at Light and Power Electric Company
    6·1 answer
  • Can a positive and negative number be equivalent<br> and plz explain you know it
    8·1 answer
  • 3x - 4y = 44<br> can someone help me get Y by it self
    10·1 answer
  • 16 x 0.2 in area model of mulitiplication
    14·1 answer
  • A group of 523 people is going on a boat tour. If each boat holds 7 people, how many people will be on the last boat?
    7·1 answer
  • Please help ill give brainliest
    9·2 answers
  • Convert 15 meters per second into kilometers per hour.
    7·2 answers
  • Greg's heart rate was no more than 71 beats. Which inequality shows how many beats, b, Greg's heart had?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!