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
Alexxandr [17]
3 years ago
9

Find the value of y when x equals 4, -3x+9y=-57

Mathematics
2 answers:
Ivenika [448]3 years ago
4 0
-12 + 9y = -57

add 12 to both sides, 9y = -45

divide 9 from both sides to isolate the y

y = -5
adoni [48]3 years ago
3 0
-3(4)+9y=-57
-12+9y=-57
9y=-45
y=-5
You might be interested in
Which best describes reduced fractions that will always terminate?
lesya692 [45]

Answer:Which fraction is a terminating decimal when written in decimal form?

Step-by-step explanation:1+1=2

4 0
3 years ago
45.50 is 30% of what number
m_a_m_a [10]

Answer:

31.85

Step-by-step explanation:

to subtract 30 percent from 45.50 just divide the percentage (30) by 100 subtract this value form 1 then multiply it by the initial value (45.50) so

final value = 45.50 x ( 1 - \frac{30}{100} )

final value = 45.50 x ( 1 - 0.3)

final value = 45.50 x (0.7)

final value = 31.85  

subtract 30% is the same as discount 30% this operation could be for example a 30% discount on 45.50

note: 0.3 can be found just by moving the decimal point 2 places to the left \frac{30}{100} = 0.3 as a decimal

3 0
2 years ago
How do you verify the identity?
rodikova [14]
Their both the answer hope this helps

5 0
3 years ago
A ^-4 / a ^-6 please simplify and show your work if possible <:D
kipiarov [429]

\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{a^{-4}}{a^{-6}}\implies a^{-4}\cdot a^6\implies a^{-4+6}\implies a^2

7 0
3 years ago
I need helppp!!! <br> −50=10s
Nimfa-mama [501]
Hey the answer is -0.2. You have to divide 10 by both sides to isolate the variable
4 0
2 years ago
Other questions:
  • Find the 11th term of the arithmetic sequence. <br> a3 = 20.5 and a8 = 13, a11 = ______. ...?
    6·1 answer
  • 1. Choose the answer that correctly expresses this ratio in fraction form.
    6·1 answer
  • A bakery sold 101 cupcakes in one day. The head baker predicted he would sell 81 cupcakes that day. What was the percent error o
    9·1 answer
  • Find the difference. <br> 3 1/4 - 1/6 = <br> Enter your answer as a mixed number.
    5·2 answers
  • Two vertices of a right triangle have coordinates (5, 12) and (11, 12) . The segment that connects these points is a leg of the
    10·2 answers
  • What is six times eight
    15·2 answers
  • What are the coordinates of the vertex for f(x) = x2 + 4x + 10?
    14·1 answer
  • A chain fits tightly around two gears as shown. What is the radius of the smaller gear? Round your answer to the nearest tenth.
    13·1 answer
  • What happens when y=f(-x)?
    6·1 answer
  • Which is another way to say
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!