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
Maksim231197 [3]
3 years ago
10

Given that R = 8 x + 4 y Find y when x = 8 and R = 30 Give your answer as an improper fraction in its simplest form.

Mathematics
1 answer:
QveST [7]3 years ago
4 0

Answer:

25/8

Step-by-step explanation:

Given That:

R = 8x+4y

X= 8

R = 30.

So, 8 x 8 +4y = 30

Simplify, Rearrange and solve.

64 + 4y = 30

4y = 30/64 = 15/32

y = 15/32 divided by 4

y = 15 / 32 x 1/4

y = 15/(32 x 4) = 15/128

hope this helps

You might be interested in
I NEED HELP IM IN CLASS RN PLEASEE HELP! WILL GIVE BRIANLIEST!
fgiga [73]

Answer:

y=x+12

Step-by-step explanation:

Well the slope is -4/-4 =1

We plug it into the formula, y=mx+b, but m=1

So it is y=1x+b

We know the points, so we plug y and x in which is:

-4=-4*4+b

-4=-16+b

b=12

So the point slope form of that is y=x+12

4 0
3 years ago
The width of a rectangular field is 20 feet less than its length. The area of the field is 12,000 ft? What is the length of the
Scilla [17]

Answer:

The answer is 120 feet.

Step-by-step explanation:

The area of the field (A) is:

A = w · l       (w - width, l - length)

It is known:

A = 12,000 ft²

l = w - 20

So, let's replace this in the formula for the area of the field:

12,000 = w · (w - 20)

12,000 = w² - 20

⇒ w² - 20w - 12,000 = 0

This is quadratic equation. Based on the quadratic formula:

ax² + bx + c = 0      ⇒  

In the equation w² - 20w - 12,000 = 0, a = 1, b = -20, c = -12000

Thus:

So, width w can be either

or

Since, the width cannot be a negative number, the width of the field is 120 feet.

6 0
2 years ago
Read 2 more answers
A2+(b−c); a=−8, b=17, c=21
JulsSmile [24]
You’re answer should be 60
8 0
3 years ago
Chang spent $16
alexandr1967 [171]

Answer:

76 percent

Step-by-step explanation:


8 0
3 years ago
What is the solution to y=3/7x -1?
DedPeter [7]
Every point on the line 3/7x -1 is a solution

Unless there is another line provided...
6 0
3 years ago
Other questions:
  • What is the slope of the line shown below
    12·2 answers
  • 1. a local reading club has a 12 hard back books 18 paper backs and 36 magazines each can be divided among the club members what
    12·1 answer
  • Add. 5/4+1/2 plzzzzzzzzz helppppppp!!!!!!!!!!!
    5·1 answer
  • Name the quadrant in which the point is located (-6,-2)
    5·2 answers
  • If you could help me with this i would be very thankful
    8·1 answer
  • I REALLY NEED HELP!!! THIS IS DUE AT 12!!!
    12·1 answer
  • Adam wanted to play his video games. His mother told him that he needed to finish his homework, clean out the dishwasher, and cl
    12·1 answer
  • Can someone help me with this question please and thank you.
    13·1 answer
  • What is cos(3pi)?<br> 1<br> 0<br> -1<br> -2
    6·2 answers
  • PLEASE HELP!!!!!!!!!!!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!