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
Usimov [2.4K]
3 years ago
8

511 = -7 (10x – 13) steps

Mathematics
2 answers:
densk [106]3 years ago
7 0

Answer:

511 =  - 7(10x - 13) \\ 511 =  - 70x + 91 \\ 511 - 91 = -  70x \\ 420 =  - 70x \\  \frac{420}{ - 70}  =  \frac{ - 70x}{ - 70}  \\  \\ x =  - 6

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em>

PilotLPTM [1.2K]3 years ago
3 0

Answer: x=-6

<u>Simplify both sides of the equation</u>

<u></u>511=(-7)(10x)+(-7)(-13)(Distribute)\\511=-70x+91<u></u>

<u></u>

<u>Flip the equation</u>

<u></u>-70x+91=511<u></u>

<u></u>

<u>Subtract 91 from both sides</u>

<u></u>-70x+91-91=511-91\\-70x=420<u></u>

<u></u>

<u>Divide both sides by -70</u>

<u></u>-70x/70=420/-70\\x=-6<u></u>

You might be interested in
Marr you made 3 gallons of punch for a party when the party was over he had 3 quarts of punch left over how many quarts of punch
Inga [223]
The guest drank 9 quarts at the party
5 0
3 years ago
CAN YOU ADD 2 TO PI TO GET A RATIONAL NUMBER
butalik [34]
No because Pi is an irrational number so adding 2 to Pi will also be irrational.

6 0
3 years ago
A store in Ashland purchased a cat calendar at a cost of $1.30 and marked it up 100%. Later on, Fernando bought the cat calendar
Arada [10]

Answer:

$2.99

Step-by-step explanation:

Given that:

Purchase price of cat calendar = $1.30

Markup = 100%

Hence, price at which the cat calendar was sold :

1.30 + 100%(1.35)

$1.30 + $1.30 = $2.60

Sales tax = 15%

Amount paid as sales. tax _

15% * 2.60 = $0.39

Total amount paid :

$2.60 + 0.39 = $2.99

7 0
3 years ago
I need help please with this answer
Firlakuza [10]

320 cm! Hope I help!!!!!!!

8 0
3 years ago
Read 2 more answers
A school psychologist wants to test the effectiveness of a new method of teaching . She recruits ​-grade students and randomly d
pav-90 [236]

Answer:

"is" (and any subsequent words) was ignored because we limit queries to 32 words.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Jamie is 3 times as old as her sister Penny .In 2 years Jamie will be twice as old as Penny .How old are Jamie and Penny now
    7·1 answer
  • Solve systems by substitution method x + y = 12 3x - y = 20
    11·1 answer
  • Mr. Hann is trying to decide how many new copies of a book to order for his students. Each book weighs 6ounces
    7·1 answer
  • How many triangles can be constructed with angles measuring 10º, 80º, and 90º?
    10·2 answers
  • • If the new image is smaller than the old image would
    8·1 answer
  • What is the difference of <br> 5<br> 6<br> −<br> 5<br> 12<br> ? Use the fraction strip to help.
    9·1 answer
  • Which is the value of n for which 411/3 + 388= n-79 ?
    5·1 answer
  • Doug is a salesperson in a retail store and earns $75 per week, plus 15% of his weekly sales. If Doug makes $555 one week, what
    10·1 answer
  • What is a Subset(It should be in the simplest form)
    14·1 answer
  • <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bx%20%3D%2012" id="TexFormula1" title="x^{2} +x = 12" alt="x^{2} +x = 12" alig
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!