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
Veseljchak [2.6K]
3 years ago
10

-16 = -5a -21. Plz help. Show work if possible. Pre-Algebra is hard. :(

Mathematics
1 answer:
Leona [35]3 years ago
5 0

Answer:

a = -1

Step-by-step explanation:

-16 = -5a - 21 (Given)

5 = -5a (Added 21 on both sides)

-1 = a (Divided -5 on both sides)

You might be interested in
In one week, the 9th grade class recycled 9 2/3 pounds of glass and 12 3/4 pounds of newspaper. How many more pounds of newspape
mariarad [96]
15 4/5 because we are adding
7 0
3 years ago
Eva payrolls for on a number cube and the number of cubes roll 24 times then what is a reasonable prediction for the number of s
Allushta [10]

Answer:

The reasonable prediction for successful rolls is 4.

Step-by-step explanation:

Assuming the rolling cube  is a fair 6 sided cube, so the probability of success of one roll is given as

P(Success)=\dfrac{Number\ of\ successful\ events}{Number\ of\ total\ events}

P(Success)=\dfrac{1}{6}

The total success is given as

P(Total\ Success)=P(Success)\times Number\ of\ events

For 24 rolls it is given as

P(Total\ Success)=P(Success)\times Number\ of\ events\\P(Total\ Success)=\dfrac{1}{6}\times 24\\P(Total\ Success)=4

So the reasonable prediction for successful rolls is 4.

3 0
3 years ago
Write a story to represent the equation 15 ÷ 1/9. Solve the equation and complete the story.
Andrew [12]

Answer:

Jamie has a  foot plank that he needs to cut into 1/9 pieces.

15 ÷ 1/9 = 135  

135 x 1/9 = 15

Step-by-step explanation:

8 0
2 years ago
Evaluate 4.8 divide x for each value of x <br> Evaluate when x = 6.
evablogger [386]

Answer:

Step-by-step explanation:

.8

4.8 divided by 6 = .8

6 0
3 years ago
In 1990, when the CPI-U was 132.4, the Bucy family spent an average of $80 per week on food. What was their weekly food bill in
timurjin [86]
The answer to your question is 83 on average
7 0
3 years ago
Other questions:
  • Sierra is looking to rent her first apartment. She found a nice apartment in her budget with a monthly rent of X dollars. At lea
    9·1 answer
  • Kevin draws a figure that has four sides.All sides have the same length.His figure has no right angles.What figure does Kevin dr
    13·1 answer
  • What is 3/25 as a repeating decimal expansion
    11·2 answers
  • this year,15 of the 40 computers in the math lab are not new. which representation is equivalent to the fraction of computers th
    6·1 answer
  • A city has 4 new houses for every 9 old houses. If there are 28 new houses in the city, how many old houses are there?
    7·2 answers
  • You might need:
    15·1 answer
  • HELP <br> What is angle 1,2,3,4
    7·1 answer
  • Paul uses a coordinate plane to design his model town layout. Paul moves the market 2 units left and 3 units down. He says the o
    8·2 answers
  • A school store buys pencils in bulk and sells them to students for a small profit. The school pays $2.00 for 100 pencils and sel
    11·2 answers
  • Which statement can be deduced from the picture?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!