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
Savatey [412]
3 years ago
12

What is the value of y in the equation 6.4x + 2.8y = 44.4, when x = 3?

Mathematics
2 answers:
kiruha [24]3 years ago
7 0

Answer: 9

Step-by-step explanation: plug 3 into the x, then use the order of operations/ pemdas to solve. first multiply 6.4 and 3 (=19.2) then subtract the answer from 44.4 (now the equation is 2.8y=25.2) then divide 2.8 from 25.2 to get x alone and you are left with x=9

Andrej [43]3 years ago
5 0

Answer:

y = 9

Step-by-step explanation:

So if x = 3, we can sub that into the equation.

This gives us:

6.4 (* 3) + 2.8y = 44.4

so:

19.2 + 2.8y = 44.4

25.2 = 2.8y

so

y = 9

You might be interested in
Try Again
Rus_ich [418]
Answer:
12 inches
step-by-step explanation:
16 inches of wire = 48 cents
48/16
3 cents for each
36/3
12 inches

4 0
2 years ago
Trying to find volume of a right circular cone.
viva [34]

Volume of the cone is 117.5 π ft³

<u>Step-by-step explanation:</u>

Lateral area of the cone = πrs

s is the slant height = 15 ft

From the above formula, we can find the radius as, 5 ft.

Volume of the cone = π r² h/3

s = √ (5²+ h²)

Squaring on both sides, we will get,

s² = 15² = (5² + h²)

 15² - 5² = h²

225 - 25 = 200 = h²

h = √200 = 14.1 ft

Volume = π × 5² × 14.1  / 3 = 117.5 π ft³

8 0
2 years ago
Y-intercept. y = -3/2x
Vaselesa [24]

Answer:

i hope you find the answer but unfortunaatly im not sure

Step-by-step explanation: thankyou for the points though :)

3 0
2 years ago
F(x)=-x^3-x^2+1 what is f(-1)
xxMikexx [17]
-1^3 - -1^2 +1= -1. ...........
8 0
3 years ago
Help me please it's a quiz
lesya692 [45]

Answer:

8000in³

Step-by-step explanation:

20³=20*20*20=8000

7 0
2 years ago
Other questions:
  • Solve for the indicated variable u=x-k, for x
    12·2 answers
  • What is the surface area of the regular pyramid given below?
    10·1 answer
  • 6. I think the answer is H, could you help and check?!
    8·2 answers
  • Graph the line that represents the equation Y+2= 1/2(x+2)
    15·1 answer
  • What is the equation of the line with a slope of 3/4 that goes through the point (4,1) in slope-intercept form ?
    12·1 answer
  • How does the graph of f(x)=x² compare with the graph of f(x)=|x²|
    5·1 answer
  • A. 30 -1 =7<br> B.<br> 32 = 8<br> 1) How can we get Equation B from Equation A?
    11·1 answer
  • 20 men decided to complete a work in 30 days. but after 6 days 8 men left now in how many day the work will be completed​
    15·1 answer
  • Leroy's total job benefits were $50,150 last year. His total job expenses for traveling and for professional development for the
    12·1 answer
  • First four terms <br> f(n)=n^3-n^2+1
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!