Given that 4x - 5y = 12 find y when x= -3

Answers

Answer 1

Answer:

y ⁻²⁴⁄₅ or - 4.8

Explanation:

4x - 5y = 12

x = -3

Insert -3 for 'x' in the equation

4(-3) - 5y = 12

Remove the parentheses: (-a) = -a

-4 · 3 - 5y = 12

Multiply 4 · 3: 12

-12 - 5y = 12

Add 12 to both sides of the equation

-12 - 5y + 12 = 12 + 2

Simplify

-5y = 24

Divide both sides by -5

-5y / -5 = 24 / -5

Simplify

y = ⁻²⁴⁄₅

Turn the fraction into a decimal

y = -4.8


Related Questions

if x is a positive integer, for how many dofferent values of x is square root 48 over x a whole number

Answers

Answer:

Therefore, for 3 values of 'x', the given fraction is a square. So, for those 3 values of 'x', the square root of the fraction will be a whole number. Thus, the answer is 3.


Superman needs to save Lois from the clutches of Lex Luthor. After flying for 8 seconds, he is 1692
meters from her. Then at 16 seconds he is 1284 meters from her.
How close to Lois is Superman after 29 seconds?

Answers

1692-1284 = 408 meters travelled in 8 seconds

408/8 = 51 meters per second is his rate of speed.

51 x 29 = 1479 meters

BUT he was 1284 meters away, so by traveling 1479 meters, he passed her.

1479 - 1284 = 195 meters past her.

He is 195 meters away from Lois at 29 seconds.

Now we could argue, since Superman is not a fool, he would’ve stopped at Lois. But that’s not what your math teacher is looking for ;)

Can someone please help super short

Answers

Answer:

542, 543, 544, 545.

Step-by-step explanation:

Divide 2174 by 4 = 543.5  

(because there are 4 integers) 543.5 is not an integer.

However, one of the four integers is 543.

Write down four consecutive numbers that include 543 and add them:  

like 541+542+543+544 =. if that is 2174, you have the answer, if it's too low, try moving up one number, like

542+543+544+545 = if it's still too low, move up one number again  

543+544+545+546=  

You only have to do that a max of 3 times to get the answer.

The four consecutive integers are  

542, 543, 544, 545.

good luck, hope this helps :)

the answer would be 542,543,544,545 i think!!

HELP? :) please :) :)

Answers

Answer:

circumference of circle=2πr=2×3.14×3.5=21.98=22

1
1
Consider the linear approximation
2
+
4 - 1
16
A. Over what interval is the approximation accurate within 0.5?
Round bounds to 4 decimal(s) while keeping the estimate within bounds.
B. Over what interval is the approximation accurate within 0.2?
Round bounds to 4 decimal(s) while keeping the estimate within bounds.

Answers

Answer:

Brainly B.Over what interval is the approximation accurate within 0.2 Roubd bounds to 4 decimal (s) while keeping the estimate within bounds Copy this write answer

Which of the following is an advantage to refinancing?
A. It is a time-consuming process.
O B. There are prepayment penalties.
C. It offers lower interest rates.
D. There are additional closing costs.

Answers

Answer:

c.it offer lower interest rates

Mary is planning to buy a mobile phone that costs $500. A salesperson at the store informs her about four different installment plans that she can choose from.

plan A: a down payment of $50 and monthly payments of $40 for 12 months
plan B: a down payment of $100 and monthly payments of $80 for 6 months
plan C: no down payment and monthly payments of $60 for 12 months
plan D: no down payment and monthly payments of $100 for 6 months

Which plan will have the highest finance charge?

Answers

Step-by-step explanation:

plan A

40 x 12 = 480 + 50 = 530

plan B

80 x 6 = 480 + 100 =580

plan c

60 x 12 = 720 no down payment

plan d

100 x 6 = 600 no down payment

so the highest finance charge will be plan c although it doesn't have down payment but the $60 charge every month for 12 months will estimate you the amount of $720

7. Two rectangles were used to form the following figure. The dimensions of both rectangles have been provided to the nearest half inch.

Answers

Answer:

b

Step-by-step explanation:

edmentum

Please solve, will mark brainliest

Answers

Answer:

1

Step-by-step explanation:

The slope is given by

m = ( y2-y1)/(x2-x1)

   = ( 4-6)/(3-5)

   = -2/-2

  = 1

Bailey spent $12.25 at the arcade on Saturday and $9.50 at the arcade on Sunday. How much money did Bailey spend anogether?

Answers

Answer:

21.75

Step-by-step explanation:

i added 12.25 by 9.50

H ello please answer :) will give brainlst

Answers

D. Compound


hope this helped <3

Answer:

D

Step-by-step explanation:

Please help with these 4 pleaseeee!!!

Answers

It looks to me that for each x it’s multiplied by 10 for y so 6*10 would be 60 . Hope it helps <3

Answer:

I only know the last one.

60 Rule: y=x10

Hope this helps

Can I get the answers to 29 and 33?

Answers

Can’t really see the problems. :(

I will be back to help everyone bye,vale,adios i forgot how to say it in french

Answers

Answer:

Huh I am confused

Step-by-step explanation:

Do you need help with anything

Answer:

How is that a question

Step-by-step explanation:

Ill edit if u put a question

(free points?)

3y > 12 graph the inequalities

Answers

Answer:

y>4

Step-by-step explanation:

3y>12

divide both sides by 3

y>4

draw a dotted horizontal line at 4 on the y-axis

shade the entire section above it

Can y’all help me on question 21?!

Answers

Answer:

D. divide 30 glasses by 5 hours

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

You must divide to find rates.

Cashews cost $1.74 per pound. Walnuts cost $1.92 per pound. How much will 3
5
pounds of cashews and 2
pounds of walnuts cost in all?

Answers

Answer:

6.09+3.84=9.93 is the desired answer

Step-by-step explanation:

Cashews total cost step by step

1.74×3.5

Multiply 1.74 and 3.5 to get 6.09.

6.09

Peanuts total cost step by step

1.92×2

Multiply 1.92 and 2 to get 3.84.

3.84

Write
7/10 as a sum of fractions two different ways.​

Answers

Answer:

First way:

1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10

Second way:

4/10 + 3/10

2/10 + 5/10
1/10 + 6/10

Write an algebraic expression for the word phrase: Half a number, x,
increased by 14

Answers

Answer:

x/2 +14

Step-by-step explanation:

half of x, x/2, increased by 14, or +14

Both equal to x/2 +14

Answer:

x2+14

I think thats the answer

Step-by-step explanation:

The value, y, in dollars of an autographed basketball after x years can be represented by the function y=4000(1.05)x.

What is the value of the basketball after 5 years to the nearest dollar?

Answers

Answer:

I took the test!!

Step-by-step explanation:

Pit this in your calculator exactly like this 4,000(1.05)^5 and you get the answer 5,105.12625. So round your answer to the nearest dollar, which is 5,105.

EASY WORK!!!plz look at the photo.

Answers

Answer:

first one is -6 and +6

Step-by-step explanation:

What is the quotient of 8,595 ÷ 24?
A.334 R 3
B.334 R 7
C. 385 R 3
D. 385 R 7

Answers

B would be the answer I’m assuming

Convert the expression (√5)(∛5) to exponential form. Show your work

Answers

Answer:

5[tex]\frac{1}{2}[/tex] * 5[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Help please!!!
Thank you!

Answers

X = 7 and Y = 16 | 2x+5 = x+12, then x+5=12, which makes X = 7. Plus X in for Y-4=X+5, Y-4=12, which makes Y = 16.

45 + blank equals 90

Answers

45
90-45=45
..........

Answer: 45

Step-by-step explanation:

90-45=45

45+45=90

James bought a PS5 game. The original price was $90, but it
was on sale for 30% off. What was the sale price?
Please help!!

Answers

Answer:

The correct answer is 27

Step-by-step explanation:

i took the test and its right please amrk brainliest i need it ;c

Answer:

63

Step-by-step explanation:

That's a cheap PS5.

11 is the quotient of a number y and 6.

Answers

Answer:

y = 66

Step-by-step explanation:

11 = y/6

11*6 = y

66 = y

Martin reconditions cameras allu sens
Which equation best represents the relationship between r the cost of a reconditioned camera and n its cost when new?
A
r
= 2n
B
r
2.
С
n
=
رہاہے
D
n = p2

Answers

Answer:

B: r =n/2

Step-by-step explanation:

Recondition only mean is that half of what the new is so recondition equals the new over half because recondition is half the price of the new

Bruce bought 5/8 ounces of peppers and 2/3 ounces of onions. How many more ounces of onions did he buy compared to peppers?

Answers

Answer:

The price of one pound of bell peppers is $0.6.

Step-by-step explanation:

This problem is equivalent to the following:

"if 10 oranges cost $20, how much does 1 orange cost? "and the answer to that question is:

price of 1 orange  = $20/ 10 oranges = $2 per orange.

Put simply, we divided the total price by the total number of items, and we shall do the same thing for the case of bell peppers:

price of 1 pound  = $1.25/ 2.5 pounds = $0.5/ pound.

The price for 1 pound of bell peppers is $0.5.

Right or wrong?? Lmk Brainly!!

Answers

Answer:

Step-by-step explanation:

RIGHT!

I hope lol

Right.

If we put values then:

5(4) + 7(3)

= 20 + 21

= 41

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