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
Zepler [3.9K]
3 years ago
6

Find the value of y in the equation y=-4x+9 when x=-3

Mathematics
2 answers:
Alla [95]3 years ago
7 0
Y =21
-4x-3 =12
12+9=21
Katena32 [7]3 years ago
6 0

Answer:

y = 21

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

y = -4x + 9

<em>x</em> = -3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em> [Equation]:                                                                                y = -4(-3) + 9
  2. Multiply:                                                                                                             y = 12 + 9
  3. Add:                                                                                                                   y = 21
You might be interested in
What is 7/16 simplified
Georgia [21]
You cant simplify it . it is already simplified 
7 0
3 years ago
Read 2 more answers
What number should be placed in the box to help complete the division calculation?
Katarina [22]

Answer:

180

Step-by-step explanation:

its 180 cos its the closest number to 193 that 18 can go in, your overall answer to the equation is 310 remainder 13. But I dont know if u need that..

5 0
3 years ago
Which is greater, 4 tenths and 2 hundredths or 2 tenths and 4 hundredths
Veronika [31]
4 tenths and 2 hundreths.
4 0
3 years ago
Read 2 more answers
Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and
sp2606 [1]

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Step-by-step explanation:

Cost of almonds per pound = $10

Cost of roasted pistachios = $12

Total amount spent = $70

Weight of nuts = 6.3

Let,

Weight of almonds = x

Weight of roasted pistachios = y

According to given statement;

x+y=6.3   Eqn 1

10x+12y=70   Eqn 2

Multiplying Eqn 1 by 10

10(x+y=6.3)\\10+10y=63\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2;

(10x+12y)-(10x+10y)=70-63\\10x+12y-10x-10y=7\\2y=7

Dividing both sides by 2

\frac{2y}{2}=\frac{7}{2}\\y=3.5

Putting y=3.5 in Eqn 1

x+3.5=6.3\\x=6.3-3.5\\x=2.8

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Keywords: linear equations, elimination method

Learn more about elimination method at:

  • brainly.com/question/11007026
  • brainly.com/question/11207748

#LearnwithBrainly

8 0
3 years ago
Coach Ellis surveyed a sample of students about their favorite sport. The circle graph below shows
CaHeK987 [17]

Answer:

C. 120 students

Step-by-step explanation:

10 + 15 + 20 +30 = 75%

100 - 75 = 25%

25% chose football which is 100 students

30% chose swimming

setup proportion:

25/100 = 30/x

25x = 100(30)

25x = 3000

x  = 120

4 0
3 years ago
Other questions:
  • Get confused with all the powers??? Answer??
    5·2 answers
  • Felipe Vasquez bought some 14₵ stamps and the same number of 22₵ stamps. He paid a total of $1.80 for all the stamps. How many o
    14·1 answer
  • The ratio of Monarch butterflies to Queen butterflies at a butterfly farm was 9:7. If there are no additional butterflies at the
    15·1 answer
  • 1. Sarah owns a small business. There was a loss of S19 on Thursday and a loss of $12 on Friday. On Saturday there was a loss of
    12·1 answer
  • Write an algebraic expression for the word phrase six times a lenght w?
    13·1 answer
  • Express in scientific notation: 215,000,000    a.2.15x10^8   b.21.5x10^7   c. 215x10^6
    10·1 answer
  • Martha earned a gross pay of $1,215.60 last week. Using the fact that
    11·1 answer
  • In an arboretum, the heights of five trees were 21 feet, 31 feet, 36 feet, 28 feet,
    8·1 answer
  • Select the correct answer. What is the value of this expression when a = 7 and b = -4?
    8·1 answer
  • Pls help with this question ASAP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!