Solve the system using the substitution method. -3x – 4y
= 2 x = y - 3

Answers

Answer 1

Answer:

y= −5/4x

heart if it helped!


Related Questions

Can one of you guys help me

Answers

It would be 12 because for every 8 carts we have 3 carts with 4 items. So if we add 24 to 8 we get 32 carts. We can set up a ratio of 3/8=x/32
We get 32*3/8x and that is 12

The square pyramid below represents a tent that Wayne is making. The sides of the tent will be covered in blue fabric, and the base of the tent will be covered in brown fabric, Find the surface area that will be covered in each color of fabric, Enter your answers in the boxes.​

Answers

Answer:

I am sorry I would love to help but I can't fiqure it out without the side length.

Step-by-step explanation:

btw i know its not your fault i dont  see the width

How many sides does a polygon have?

Answers

Answer:

it can have any about 3 and up as long as it is a 2d shape and it has to have straight lines

Answer:

They all vary. All a polygon needs is straight sides, two dimensions, and equal length sides.

Step-by-step explanation:

Hope this helps!

This is hard can someone help me!

Answers

The points are the the answers it’s in the drawing. Look where the points are located
slope: 4/2
y-intercept: -4
equation:

Can Someone please help me out with this problem

Answers

Step-by-step explanation:

find the area as if it was a rectangle so do 14x12 then subtract the area of half a circle with a diamater of 12

Find the missing angle (x) in the diagram below. Show your work. (doing online school)

Answers

U forgot to add the diagram.. Lol

plz answer
correctly it is worth a lot of points

Answers

75% is covered by the shaded area.

Answer:

75%

Step-by-step explanation:

Someone PLSSS HELP TYSM IF U DO

Answers

-41.2 minus (-37.4) is -3.8.

If this is incorrect, please, don't refrain to tell me. Thank you.

Answer: -3.8

Hope this helps!

Find area of square
Pls help

Answers

Answer:

49/64 yd²

Step-by-step explanation:

since where finding a square we do

A = bxh

A = 7/8×7/8

A = 49/64

PLEASE HELP ME ILL GIVE 70 POINTS AND MARK BRAINLIEST

Answers

Answer:

7: 28x+4 6:20x+2

What is the surface area of the cylinder with height 6 in and radius 7 in? Round your answer to the nearest thousandth.

Answers

Answer:

571.77

Step-by-step explanation: I might be wrong so don't really trust me

A salesperson sells $2700 in merchandise and earns a commission of $513.
Find the commission rate. Write your answer as a percentage.

Answers

Answer:

1.9%.

Step-by-step explanation:

guyssss ANYONEEE PLSSS!!!!!I NEED HELP LIKE ACTUALLY

Answers

Answer:

infinite number of solutions

Find the sum of 318 nanoseconds and 96 microseconds

Answers

Step-by-step explanation:

1 microsecond is equal to 1000 nanoseconds.

Knowing this, we can multiply 96*1000 to get 96,000.

Then just add the additional 318 nanoseconds.

96,000+318=96,318 nanoseconds.

will mark brainliest pls help

Answers

try photo math it should

1) Find AC
2
А
24
118°
220
B

Answers

Ac is 40 because you add up the number and subtract by 180 which is 40 after all or that

Apply the problem-solving techniques to solve the following
problem.
Population decrease In 1990, a rural area had 1200 bird
species. If species of birds are becoming extinct at the rate of
1.5% per decade (10 years), how many bird species will there be
left in the
year
2020?

Answers

Answer:

By 2020, there will be 1,147 species of birds left

Step-by-step explanation:

The general model for an exponential decrease is;

y = I(1 - r)^t

where in this case;

y is the number of bird species at a particular decade from the initial

I is the number of birds initially at 1990

r is the decrease percentage which is 1.5% per decade ; 1.5% = 1.5/100 = 0.015

t in this case will be the number of decades after the initial

Mathematically, a decade is 10 years

The difference between 2020 and 1990 is 30

The number of decades in 30 years is 30/10 = 3

so t will be 3 here

Substituting these values into the equation, we have

y = 1200(1-0.015)^3

y = 1200(0.985)^3 = 1,146.8

To the nearest whole number, this is 1,147

Substitution
x+5y=13, 4x+7y=0
PLEASE HELP MEE<3


Answers

Step-by-step explanation:

x+5Y=13...... 1

4x +7y=0..... 2

from eqn 1

x =13-5y

substitute into eqn 2

[tex]4(13 - 5y) + 7y = 0[/tex]

52-20y +7y=0

52-13y=0

52=13y

y=52÷13

y=4

substitute Y into eqn 2

x +5y=13

x + 5(4)= 13

x+ 20=13

x=13-20

x=-7

Hiiioo :D can someone please help. I really need help. Much love ❤️❤️❤️

Answers

Answer:

The answer is the second one!

Have a wonderful day/night! <3

0.96÷104 i dont have big brain

Answers

Answer:

0.00923077

Step-by-step explanation:

thats it

Answer:

Your answer is 0.000096 if your question was 0.96÷10 with a power of 4.

15 chocolate were distributed between raju and sanju in the ratio 2:3 . How many chocolates did raju receive?​

Answers

Answer:

6chocolates

Step-by-step explanation:

Given

The total number of chocolate = 15chocolates

If it is divide into ratio 2:3

total ratio = 2+3

Total ratio = 5

Number of chocolate raju receives = 2/5 * 15

Number of chocolate raju receives = 2 * 3

Number of chocolate raju receives = 6chocolates

The number of chocolates that Raju received are; 6 chocolates

Proportion

We are told that;

Number of chocolates distributed = 15

Ratio of sharing between Raju and sanju = 2:3

Thus, fraction to be received by both of them are;

For Raju = 2/(2 + 3) = 2/5For Sanju = 3/(2 + 3) = 3/5

Thus;

Amount of chocolates for Rajus = 2/5 × 15 = 6

In conclusion, Raju received 6 chocolates.

Read more about proportion at; https://brainly.com/question/1781657

PLZZZ ANSWER HURRY 25 POINTS

Answers

Answer:

3

Step-by-step explanation:

Which of the following is a decreasing function?
y = 3(2)^x
y=2(1)^x
y=-3(1)^x

Answers

The answer is y=-3(1)^x by the negative sign in the value of a.

(5g2+6g-10)
-(6b2+2g+9)

Answers

Answer:

look at given picture

Step-by-step explanation:

there is complete soln

!!!!!!!!! PLEASE HELP !!!!!!!!!!

please show work


will give brainliest to whoever shows their work correctly


Solve x² - 6x - 7 = 0

Answers

Answer:

x= 7

x=-1

Step-by-step explanation:

- Multiply the coefficient of the first term by the constant   1  -7 = -7

- Find two factors of  -7  whose sum equals the coefficient of the middle term, which is   -6 .

-7+ 1 = -6

-Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -7  and  1.

x^2-7x+1x-7

- Add up the first 2 terms, pulling out like factors.

x • (x-7)

Can someone help me with this. Will Mark brainliest.

Answers

Answer: I think it’s False I’m not sure

Answer:

it's false because isosceles is convex quadrilateral with line of symmetry

Madeline has 2 times the number of games as Paulo. Paulo has 4 more games than Tyler. If Tyler has 9 games, how many games are there among the 3 friends?

Answers

There is a total of 48 games among the three friends.

What is the concept of cause and effect?
A.
when an action causes something to come into effect
B.
when an action is caused but there is no resulting effect
C.
when an action doesn't actually have a resulting effect
D.
when an action leads to an effect that is not desired

Answers

Answer:

A.  when an action causes something to come into effect

Step-by-step explanation:

Mark as brainliest please. Hope the answer helps :)

A boat covers 25 km upstream and 44 km downstream in t hours. Also, it covers 15 km upstream and 22 km downstream in 5 hours. Find the speed of the boat in still water and that of the stream.​

Answers

9514 1404 393

Answer:

  boat speed: (7t -95)/(6t² -110t +500)

  stream speed: (37t -345)/(6t² -110t +500)

Step-by-step explanation:

The relation between time, speed, and distance is ...

  time = distance/speed

The boat speed (b) is added to the stream speed (s) going downstream. The stream speed is subtracted going upstream. The given relations tell us ...

  25/(b-s) +44/(b+s) = t

  15/(b-s) +22/(b+s) = 5

This gives us 2 equations in 3 unknowns, so we can only provide a solution in terms of one of the unknowns. Since we are asked for the speeds, they will be provided in terms of t.

Subtracting the first equation from 2 times the second gives ...

  2(15/(b-s) +22/(b+s)) -(25/(b-s) +44/(b+s)) = 2(5) -(t)

  5/(b-s) = 10 -t

  5/(10 -t) = b -s

Substituting for b-s in the second equation gives ...

  15/(5/(10-t)) +22/(b+s) = 5

  30 -3t +22/(b+s) = 5

  22/(b+s) = 3t -25

  22/(3t -25) = b+s

Adding the equations for the sum and difference of speeds, we get ...

  (b-s) +(b+s) = 5/(10-t) +22/(3t -25)

  2b = (5(3t -25) +22(10 -t))/((10-t)(3t-25)) = (95 -7t)/((10-t)(3t-25))

  b = (7t -95)/(6t² -110t +500)

Subtracting the equations for sum and difference of speeds, we get ...

  (b+s) -(b-s) = 22/(3t -25) -5/(10 -t)

  2s = (22(10-t) -5(3t -25))/((10-t)(3t-25))

 s = (37t -345)/(6t² -110t +500)

__

The speed of the boat in still water is (7t -95)/(6t² -110t +500) km/h.

The speed of the stream is (37t -345)/(6t² -110t +500) km/h.

__

Note that these solutions only make sense for values of t between 25/3 and 345/37, approximately 8.33 < t < 9.32. For t=9 hours, the boat speed is 8 km/h and the stream speed is 3 km/h.

When Daniel left his house in the morning, his cell phone battery was partially
charged. Let B represent the charge remaining in Daniel's battery, as a percentage,
hours since Daniel left his house. The table below has select values showing the linear
relationship between t and B. Determine how much battery life Daniel's phone
would have 1.5 hours after leaving his house.
t
B
1
27.5
2.5
19.25
4
11

Answers

Answer:

24.75 percents

Step-by-step explanation:

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