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
BigorU [14]
3 years ago
8

4x + 5y = -30what is 4x + 5y equals -30 ​

Mathematics
1 answer:
ASHA 777 [7]3 years ago
3 0

Answer:

x=−5/4y+−15/2

Step-by-step explanation:

Step 1: Add -5y to both sides.

4x+5y+−5y=−30+−5y

4x=−5y−30

Step 2: Divide both sides by 4.

4x/4=−5y−30/4

x=−5/4y+−15/2

Hope this helps!! If so please mark brainliest and rate/heart to help my account if it did!!

You might be interested in
A circular swimming pool has a diameter of 40 meters. The depth of the pool is constant along west-east lines and increases line
Nataliya [291]

Answer:

Volume is 2000\pi\ m^{3}

Solution:

As per the question:

Diameter, d = 40 m

Radius, r = 20 m

Now,

From north to south, we consider this vertical distance as 'y' and height, h varies linearly as a function of y:

iff

h(y) = cy + d

Then

when y = 1 m

h(- 20) = 1 m

1 = c.(- 20) + d = - 20c + d              (1)

when y = 9 m

h(20) = 9 m

9 = c.20 + d = 20c + d                  (2)

Adding eqn (1) and (2)

d = 5 m

Using d = 5 in eqn (2), we get:

c = \frac{1}{5}

Therefore,

h(y) = \frac{1}{5}y + 5

Now, the Volume of the pool is given by:

V = \int h(y)dA

where

A = r\theta

A = rdr\ d\theta

Thus

V = \int (\frac{1}{5}y + 5)dA

V = \int_{0}^{2\pi}\int_{0}^{20} (\frac{1}{5}rsin\theta + 5) rdr\ d\theta

V = \int_{0}^{2\pi}\int_{0}^{20} (\frac{1}{5}r^{2}sin\theta + 5r}) dr\ d\theta

V = \int_{0}^{2\pi} (\frac{1}{15}20^{3}sin\theta + 1000) d\theta

V = [- 533.33cos\theta + 1000\theta]_{0}^{2\pi}

V = 0 + 2\pi \times 1000 = 2000\pi\ m^{3}

7 0
3 years ago
Answer the following ratios <br><br> 55 paise to Rs 1<br> 500ml to 2 liters
AfilCa [17]
55:1

500:2

There ya go!
7 0
3 years ago
Given f(x) = (3x – 12) +2, what is the domain in set notation?
sattari [20]

Answer:4

Step-by-step explanation:

6 0
3 years ago
Use the given conditions to write an equation in slope-intercept form. slope = 7, passing through (1,-3) My suggestion is to fir
sveticcg [70]

Answer:

Step-by-step explanation:

y + 3 = 7(x - 1)

y + 3 = 7x - 7

y = 7x - 10

5 0
3 years ago
If you are facing north. Turn 90 degrees left. Turn 180 degrees right. Reverse direction. Turn 45 degrees left. Reverse directio
ololo11 [35]
Northeast. Im not 100% sure though,,,,
7 0
3 years ago
Read 2 more answers
Other questions:
  • Compare how you would make a model and note how to find the sum and difference of two stones weighing 2/8 pounds and 3/8 pounds
    11·2 answers
  • A number z times 2 minus 6is the same as m divided by 3
    8·2 answers
  • The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces. We are interested in testing to d
    12·1 answer
  • If the hypotenuse of a right triangle measures 15 cm and one of the legs measures 12 cm, what is the length of the other leg?
    13·1 answer
  • Which is greater: 0.75 or 0.69?
    7·2 answers
  • Find the area of the shaded segment of the circle. Please help
    12·1 answer
  • The function f(x) = 9x +5 is one-to-one.<br> Find an equation for f-'(x), the inverse function.
    5·1 answer
  • Jason designs a rectangular sandbox. He models the perimeter of the sandbox using the expression 8l+2, where l is the length of
    14·1 answer
  • What does "brainliest" award do, like what does it do for me why do people say it I don't understand lol ​
    13·2 answers
  • The ratio of the volume of two spherical steels balls is 27:64. what is the ratio of their diameters
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!