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
kramer
3 years ago
12

Using the substitution method, Vito is solving the following system of equations algebraically: y + 3x = -4 2x-3y = -21% D Which

equivalent equation could Vito use?
Mathematics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

He could use y+3x=-4

Step-by-step explanation:

When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21

You might be interested in
What is (-7)^2 × (-7)?<br><br> I will mark the Brainliest, thank, and comment!<br><br> Thank you!
belka [17]

Answer:

The answer is -343.

Step-by-step explanation:

If a term doesn't have an exponent, it's considered that the exponent is 1 (so basically, (-7)² x (-7)^1.

Multiply the terms with the same base (by adding the exponents - (-7)²+1<- (as the exponential value) (couldn't find the sign so sorry.)

Add the numbers: (-7)³

A negative base raised to an odd power equals a negative: -7³

Write the problem out: -(7 x 7 x 7).

Multiply: -343

3 0
3 years ago
What is a forecast error
Mama L [17]

Answer:In statistics, a forecast error is the difference between the actual or real and the predicted or forecast value of a time series

Step-by-step explanation:find the Mean Absolute Percent Error (MAPE) of your forecast. Statistically MAPE is defined as the average of percentage errors.

4 0
3 years ago
Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a
kirill115 [55]

Answer:

$

1

,

920

Explanation:

Find  

15

%

×

12800

15

100

×

12800

1

=

$

1

,

920

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3) If you can buy one package of shallots for<br> $4, then how many can you buy with $12?
Olin [163]

Answer:

3.

Step-by-step explanation:

4$ = 1 pack

(think: what times 4 is 12? 3! so we need to muliply both sides of the equal sign by 3, so we can turn the 4 into a 12. Remember, what you do to on side, you must do to the other. )

4$ = 1 pack

*3  *3

12$ = 3 packs

so your answer is 3.

5 0
3 years ago
Read 2 more answers
What is the derivative of y=(4x+1)(1-x)^3
Rudik [331]
I am not so sure of this but I feel it would serve as hint

6 0
3 years ago
Other questions:
  • Jennifer has 3 1/2 cups of jelly beans to share with 7 friends how many cups does each person get
    8·2 answers
  • Plz help meh if it says high school its middle
    6·2 answers
  • What is the area of triangle ABC?
    8·1 answer
  • Lified expression for 2(X-5)?
    6·1 answer
  • Joesphine scored 95, 84, and 87 on three math tests. She wants her average score for 5 tests to be at least 90.
    8·1 answer
  • // ANSWER PLS //
    15·1 answer
  • Answer this page: BIG REWARD GRANTED
    9·1 answer
  • You roll a 6-sided die two times. What is the probability of rolling 1 and then rolling a 2
    12·1 answer
  • Simplify 4^3 x 4^5 a. 16x15 b. 16^8 c. 4^15 d. 4^8
    9·1 answer
  • PLEAS EHELP ME WITH THIS QUESTION IN THE NEXT MINUTE
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!