4. If y = 5x – 3 and 3x - y = -1, what is the value of y?
A 2
B -1
C 7
D -8​

Answers

Answer 1

answers:

4.C po

Step-by-step explanation:

i hope its help


Related Questions

I will mark brainliest please help​

Answers

Answer:

2/3, 2 to 3, 2:3

Step-by-step explanation:

pls help !! someone :((

Answers

Answer:

C. $352.80

Step-by-step explanation:

Multiply 14 x 12 which you get 168..

Now Multiply again.. 168 x the number of how much is every square foot which is 2.10.. 168 x 2.10 = 352.8 ($352.80)

Find the percent of change. Round to the nearest
tenth, if necessary. Then state whether the percent of
change is an increase or a decrease.
30. From 55 lb to 24 lb

Answers

Answer:

Decease in weight by 56.4%

Step-by-step explanation:

From 55 lb to 24 lb,

There is a decrease in the weight from 55 lb to 24 lb.

For the percentage decrease in weight,

Change in weight = 55 - 24

                              = 31 lb

Percentage change in weight = [tex]\frac{\text{Total change}}{\text{Initial value}}\times 100[/tex]

                                                  = [tex]\frac{31}{55}\times 100[/tex]

                                                  = 56.36%

                                                  ≈ 56.4%

Therefore, there is a decease in weight by 56.4%.

You buy a pair of shoes for $40, at check out you are also charged 8% sales tax. What is the total cost of your shoes

Answers

Answer:

43.20

Step-by-step explanation:

I hope this is right !

Answer:  3.2 done

Step-by-step explanation:

What is the constant of proportionality, y/x

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

k = 0.5

Step-by-step explanation:

Proportional relationship:

y = kx, where k- constant of proportionality

Using point on the graph (1, 0.5) to find the value of k:

0.5 = k*10.5 = kk = 0.5

factor the expression using the GCF 24-18

Answers

So you start by dividing 6 out of the expression and you get 6(4-3)

Answer:

6

Step-by-step explanation:

6 is the answer my guy

I WILL GIVE BRAINLIEST

The linear functions f(x) and g(x) are represented on the graph, where g(x) is a transformation of f(x):


A graph with two linear functions; f of x passes through 5, 0 and 10, 10, and g of x passes through negative 3, 0 and 2, 10.


Part A: Describe two types of transformations that can be used to transform f(x) to g(x). (2 points)


Part B: Solve for k in each type of transformation. (4 points)


Part C: Write an equation for each type of transformation that can be used to transform f(x) to g(x). (4 points)

Answers

Answer:

A or C can be it because It is not b

Suzy is planning to
carpet her room. Her
room measures 12
feet by 15 feet. How
many square yards of
carpeting will she
need?

Answers

180 square feet. Area is equal to length times width. Just multiply the two sides together :3

#5 need help asap will give brainly

Answers

This might help

total surface area Stot = 42.5 ft2

lateral surface area Slat = 30 ft2

top surface area Stop = 6.25 ft2

bottom surface area Sbot = 6.25 ft2

but im thinking they would need 113.7 ft of rapping paper i many be totally wrong tho

Answer:

42.5

Step-by-step explanation:

To find how many square inches of wrapping paper he will need you need to find the area of each face of the box and add them all together.

Top and bottom face:

First, 2.5 times 2.5 equals 6.25. Multiply 6.25 times 2 since there is one for the top and bottom to get 12.5

Left, Right, front, and back face:

Multiply 2.5 by 3 to get 7.5, and multiply 7.5 by 4 to get 30 since there are four faces with the same area.

Final Step:

Now, just add all the areas of the faces calculated to recieve the answer of 42.5

30 + 12.5 = 42.5

find the value of a and b

Answers

Answer:

Step-by-step explanation:

In triangle ADC,

b+50+60=180(sum of angles of triangle equals 180)

or,b=180-110

▪b=70

also,

In triangle ABD,

angleA = 30+50=80

now,

a+80+60=180(sum of angles of traingle equals 180)

or,a=180-140

▪a=40'

Ans.

A life guard is sitting on a platform, looking down at a swimmer in the water. If the lifeguards line of sight is 8 feet above the ground and the angle of depression is 18 degrees, how far away is the swimmer from the lifeguard? Round to the nearest tenth

Answers

Answer: The swimmer is 26 ft (approximately) away from the lifeguard

Step-by-step explanation: Please refer you the attached diagram.

The lifeguard sitting on the platform is labeled as point P, and the swimmer down below is at point S. The point G is the point directly beneath the lifeguard. So, we have a right angled triangle PSG. Also the angle of depression is 18 degrees, so the angle of sight between the lifeguard and the ground is 72 degrees (that is, 90 - 18 = 72).

Having derived a right angled triangle with two sides and a reference angle, we can now use the trigonometric ratio which is;

CosP = Adjacent/Hypotenuse

The adjacent is the side that lies between the reference angle and the right angle (side PG), while the hypotenuse is the side facing the right angle (side PS). Hence;

Cos72 = 8/g

By cross multiplication we now have

g = 8/Cos72

g = 8/0.3090

g = 25.8899

Approximately, g = 26 ft.

Find the value of x.

6


4.8


6.5


7.5

Answers

Answer:

7.5

Hope that helps!

7.5
I think the is the right answer



Can you pls mark me brainlest

Paul needs to buy 5_8pound of peanuts. The scale at the store measures parts of a pound in sixteenths. What measure is equivalent to 5_8pound?

Answers

Answer:

10 ÷ 16

Step-by-step explanation:

The computation is shown below

Given that

Paul required to buy 5 by 8 pound of peanuts

And, the scale at the store is in sixteenths

So, the measure that should be equivalent is

Here the denominator should be 16 so it should be multiplied by 2

= 5 ÷ 8 × 2 ÷ 2

= 10 ÷ 16

Helpp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

36 (Answer D)

Step-by-step explanation:

There are 4 possible choices of main dish, 3 of sides and 3 of drinks.

All choices are independent, so this is independent probability.

The number of combinations is 4*3*3, or 36 (Answer D)

a symbol used to separate the ones and the tenths place is

Answers

a decimal - written as "."

Answer: decimal

Step-by-step explanation: decimal

Robbie owns 15 % more movies than Rebecca, and Rebecca owns 10 % more movies than Joshua. If Rebecca owns 220 movies, how many movies do Robbie and Joshua each have?

Answers

Step-by-step explanation:

Robbie=

15%/100%=220

=33 movies

Rebecca=

10%/100%=220

11 movies

Robbie have 33 movies and Joshua have 11 movies

Thank you

Hope it helps.

Find the surface area of each figure. Round your answers to the nearest hundredth, if necessary

Answers

Answer:

506π ft^2

Step-by-step explanation:

here's your solution

=> height of cylinder = 12 ft

=> radius of cylinder = 11 ft

=> surface area of cylinder = 2πr(h+r)

=> SA = 2*11(12+11)*π

=> SA = 22*23π

=> SA = 506π ft^2

hope it helps

I need help answering this question for my geometry homework

Answers

Answer:

angle 6

hope that helps

Can someone help me

Answers

Answer:

The answer is 1/3

Step-by-step explanation:

Yoh would get this because an dice has six sides. If two numbers are being offered, that's 2/6 , or 1/3 simplified.

A cube has 6 sides and and to either roll a 2 or a 3 would give you a 2/6 chance or 1/3 chance

Two sides of a triangle have side lengths of 17 meters and 12 meters. What is the range of possible
lengths for the third side

Answers

Answer:

use a^2+b^2=c^2.

so u might have two answer one if u plug 17 and 12 as your a and b and solve for c

second is when you plug 12 as a and 17 as 17 qnd solve for b.

hope this helped

Step-by-step explanation:

pls mark brainliest

A right rectangular prism has a length of 3 1/3 yards, a width of 2 1/2 yards, and a height of 4 1/3 yards. What is the volume of the prism?
Answer choices:
A: 10 1/6 cubic yards
B: 24 1/18 cubic yards.
C: 35 1/2 cubic yards.
D: 36 1/9 cubic yards.

Answers

A because they have a common denominator also it has to be the least common denominator which is 6

75% of b is 12. what is b?

Answers

Answer:

16

Step-by-step explanation:

same explanation as last time accept its 3/4 into 4/3

Answer: b = 16

Steps:
75% of b is 12
75% * b = 12
0.75 * b = 12
b = 12/0.75
b = 16

Check:
0.75 * 16 = 12
12 = 12 ✅

If this was correct and helpful I would appreciate the brainliest! :)

thanks lovely person heres 15 points

Answers

Answer:

thank you

Step-by-step explanation:

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Answer:

8 units

Step-by-step explanation:

I can count

what are the coordinates of the midpoint of segment AB with the endpoint A(-3,4) and (5,6)

Answers

Answer:

(1,5)

Step-by-step explanation:

You use the midpoint formula to solve this problem

The midpoint formula:

To solve for x: (x1+x2)÷2

To solve for y: (y1+y2)÷2

10. A girl read a book that had 1,259 pages. She read 75 pages on the first day. She then read 45 pages
per day until she finished the book. Write an equation that could be used to find the number of days, d,
it took her to read the book.
I

Answers

75+45d=1,259 if you need to solve take the total subtract it by 75, then divide by 45 which gives you 26.3, if it wants you to round up I’d say 27 days

Help plzzzzzzzzzzzzzzzzz

Answers

Answer:

this answer is -1.8

Step-by-step explanation:

because you add and subtract all of them

Answer:

0.9

Step-by-step explanation:

Basic angle =

[tex]cos { }^{ - 1} ( \frac{4}{5} ) = 36.870 \: degrees \\ [/tex]

Therefore,

[tex]theta = 180 + 36.870 = 216.87 \: degrees[/tex]

Therefore,

[tex] \sin( \frac{theta}{2} ) = \sin(108.435 ) = 0.9[/tex]

You know the length of the garden is 12 feet. You also know that the area of the garden is 60 ft2. Write and solve an equation to determine what is the width of the garden?

Answers

Answer:

Width is 5

Step-by-step explanation:

Set up an equation

12x=60

divided both sides by 12

answer is 5

The width is 5

to check your answer multiply it by the length

12*5=60

Check Check

Answer:

60÷12=5 so the width is 5 if the length is 12.

$4.00 + $2.00=
answer

Answers

Uhh $6.00 is your answer have a good day!

please would you be so kind and help me with problems four through 12?

Answers

I will do 4 and 5 only. Also, post one problem at a time.

Question 4

Measure of arc GJ = measure of the central angle, which in this case is 90 degrees. So, the measure of arc GJ = 90°.

Question 5

The measure of diameter HJ = 180 degrees.

We need to find the adjacent angle which I will call angle x.

So, x = 180° - 151° = 29 degrees.

Just like Question 4 above, the measure of 29 degrees is the central angle for arc HI.

As you know, HI = the measure of the central angle. So, the measure of arc HI = 29°.

Try the rest on your own.

As you do the rest, keep in mind that the measure of a circle in terms of degrees is 360 degrees. This will help you do the rest of the questions for circle B.

George says that an account that earns 4% interest compounded annually and an account that earns 2% interest compounded semi-annually will be worth the same if the principals are the same

Answers

Answer:

the account won't yield the same amount despite the same principal amount.

Step-by-step explanation:

To test this assertion :

Let principal = $1000

t = 1 year

Compound interest formula :

A = P(1 + r/n)^nt

P = principal ; r = rate, n = number of times interest is compounded per period ; t = time

Account A :

Rate = 4% annually

A = 1000(1 + 0.04/1)^1

A = 1000 * 1.04 = $1040

Account B:

Rate = 2% compounded semianually ; n = 12 /6 = 2

A = 1000(1 + 0.02/2)^1*2

A = 1000(1.01)^2

A = 1000 * 1.0201

A = $1020.1

From the result, the account won't yield the same amount despite the same principal amount.

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